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Internist reports from COVID-19 front lines near Seattle
KENT, WASHINGTON – The first thing I learned in this outbreak is that my sense of alarm has been deadened by years of medical practice. As a primary care doctor working south of Seattle, in the University of Washington’s Kent neighborhood clinic, I have dealt with long hours, the sometimes-insurmountable problems of the patients I care for, and the constant, gnawing fear of missing something and doing harm. To get through my day, I’ve done my best to rationalize that fear, to explain it away.
I can’t explain how, when I heard the news of the coronavirus epidemic in China, I didn’t think it would affect me. I can’t explain how news of the first patient presenting to an urgent care north of Seattle didn’t cause me, or all health care providers, to think about how we would respond. I can’t explain why so many doctors were dismissive of the very real threat that was about to explode. I can’t explain why it took 6 weeks for the COVID-19 outbreak to seem real to me.
If you work in a doctor’s office, emergency department, hospital, or urgent care center and have not seen a coronavirus case yet, you may have time to think through what is likely to happen in your community. We did not activate a chain of command or decide how information was going to be communicated to the front line and back to leadership. Few of us ran worst-case scenarios.
By March 12, we had 376 confirmed cases, and likely more than a thousand are undetected. The moment of realization of the severity of the outbreak didn’t come to me until Saturday, Feb. 29. In the week prior, several patients had come into the clinic with symptoms and potential exposures, but not meeting the narrow Centers for Disease Control and Prevention testing criteria. They were all advised by the Washington Department of Health to go home. At the time, it seemed like decent advice. Frontline providers didn’t know that there had been two cases of community transmission weeks before, or that one was about to become the first death in Washington state. I still advised patients to quarantine themselves. In the absence of testing, we had to assume everyone was positive and should stay home until 72 hours after their symptoms resolved. Studying the state’s FMLA [Family and Medical Leave Act] intently, I wrote insistent letters to inflexible bosses, explaining that their employees needed to stay home.
I worked that Saturday. Half of my patients had coughs. Our team insisted that they wear masks. One woman refused, and I refused to see her until she did. In a customer service–oriented health care system, I had been schooled to accommodate almost any patient request. But I was not about to put my staff and other patients at risk. Reluctantly, she complied.
On my lunch break, my partner called me to tell me he was at the grocery store. “Why?” I asked, since we usually went together. It became clear he was worried about an outbreak. He had been following the news closely and tried to tell me how deadly this could get and how quickly the disease could spread. I brushed his fears aside, as more evidence of his sweet and overly cautious nature. “It’ll be fine,” I said with misplaced confidence.
Later that day, I heard about the first death and the outbreak at Life Care, a nursing home north of Seattle. I learned that firefighters who had responded to distress calls were under quarantine. I learned through an epidemiologist that there were likely hundreds of undetected cases throughout Washington.
On Monday, our clinic decided to convert all cases with symptoms into telemedicine visits. Luckily, we had been building the capacity to see and treat patients virtually for a while. We have ramped up quickly, but there have been bumps along the way. It’s difficult to convince those who are anxious about their symptoms to allow us to use telemedicine for everyone’s safety. It is unclear how much liability we are taking on as individual providers with this approach or who will speak up for us if something goes wrong.
Patients don’t seem to know where to get their information, and they have been turning to increasingly bizarre sources. For the poorest, who have had so much trouble accessing care, I cannot blame them for not knowing whom to trust. I post what I know on Twitter and Facebook, but I know I’m no match for cynical social media algorithms.
Testing was still not available at my clinic the first week of March, and it remains largely unavailable throughout much of the country. We have lost weeks of opportunity to contain this. Luckily, on March 4, the University of Washington was finally allowed to use their homegrown test and bypass the limited supply from the CDC. But our capacity at UW is still limited, and the test remained unavailable to the majority of those potentially showing symptoms until March 9.
I am used to being less worried than my patients. I am used to reassuring them. But over the first week of March, I had an eerie sense that my alarm far outstripped theirs. I got relatively few questions about coronavirus, even as the number of cases continued to rise. It wasn’t until the end of the week that I noticed a few were truly fearful. Patients started stealing the gloves and the hand sanitizer, and we had to zealously guard them. My hands are raw from washing.
Throughout this time, I have been grateful for a centralized drive with clear protocols. I am grateful for clear messages at the beginning and end of the day from our CEO. I hope that other clinics model this and have daily in-person meetings, because too much cannot be conveyed in an email when the situation changes hourly.
But our health system nationally was already stretched thin before, and providers have sacrificed a lot, especially in the most critical settings, to provide decent patient care. Now we are asked to risk our health and safety, and our family’s, and I worry about the erosion of trust and work conditions for those on the front lines. I also worry our patients won’t believe us when we have allowed the costs of care to continue to rise and ruin their lives. I worry about the millions of people without doctors to call because they have no insurance, and because so many primary care physicians have left unsustainable jobs.
I am grateful that few of my colleagues have been sick and that those that were called out. I am grateful for the new nurse practitioners in our clinic who took the lion’s share of possibly affected patients and triaged hundreds of phone calls, creating note and message templates that we all use. I am grateful that my clinic manager insisted on doing a drill with all the staff members.
I am grateful that we were reminded that we are a team and that if the call center and cleaning crews and front desk are excluded, then our protocols are useless. I am grateful that our registered nurses quickly shifted to triage. I am grateful that I have testing available.
This week, for the first time since I started working, multiple patients asked how I am doing and expressed their thanks. I am most grateful for them.
I can’t tell you what to do or what is going to happen, but I can tell you that you need to prepare now. You need to run drills and catch the holes in your plans before the pandemic reaches you. You need to be creative and honest about the flaws in your organization that this pandemic will inevitably expose. You need to meet with your team every day and remember that we are all going to be stretched even thinner than before.
Most of us will get through this, but many of us won’t. And for those who do, we need to be honest about our successes and failures. We need to build a system that can do better next time. Because this is not the last pandemic we will face.
Dr. Elisabeth Poorman is a general internist at a University of Washington neighborhood clinic in Kent. She completed her residency at Cambridge (Mass.) Health Alliance and specializes in addiction medicine. She also serves on the editorial advisory board of Internal Medicine News.
KENT, WASHINGTON – The first thing I learned in this outbreak is that my sense of alarm has been deadened by years of medical practice. As a primary care doctor working south of Seattle, in the University of Washington’s Kent neighborhood clinic, I have dealt with long hours, the sometimes-insurmountable problems of the patients I care for, and the constant, gnawing fear of missing something and doing harm. To get through my day, I’ve done my best to rationalize that fear, to explain it away.
I can’t explain how, when I heard the news of the coronavirus epidemic in China, I didn’t think it would affect me. I can’t explain how news of the first patient presenting to an urgent care north of Seattle didn’t cause me, or all health care providers, to think about how we would respond. I can’t explain why so many doctors were dismissive of the very real threat that was about to explode. I can’t explain why it took 6 weeks for the COVID-19 outbreak to seem real to me.
If you work in a doctor’s office, emergency department, hospital, or urgent care center and have not seen a coronavirus case yet, you may have time to think through what is likely to happen in your community. We did not activate a chain of command or decide how information was going to be communicated to the front line and back to leadership. Few of us ran worst-case scenarios.
By March 12, we had 376 confirmed cases, and likely more than a thousand are undetected. The moment of realization of the severity of the outbreak didn’t come to me until Saturday, Feb. 29. In the week prior, several patients had come into the clinic with symptoms and potential exposures, but not meeting the narrow Centers for Disease Control and Prevention testing criteria. They were all advised by the Washington Department of Health to go home. At the time, it seemed like decent advice. Frontline providers didn’t know that there had been two cases of community transmission weeks before, or that one was about to become the first death in Washington state. I still advised patients to quarantine themselves. In the absence of testing, we had to assume everyone was positive and should stay home until 72 hours after their symptoms resolved. Studying the state’s FMLA [Family and Medical Leave Act] intently, I wrote insistent letters to inflexible bosses, explaining that their employees needed to stay home.
I worked that Saturday. Half of my patients had coughs. Our team insisted that they wear masks. One woman refused, and I refused to see her until she did. In a customer service–oriented health care system, I had been schooled to accommodate almost any patient request. But I was not about to put my staff and other patients at risk. Reluctantly, she complied.
On my lunch break, my partner called me to tell me he was at the grocery store. “Why?” I asked, since we usually went together. It became clear he was worried about an outbreak. He had been following the news closely and tried to tell me how deadly this could get and how quickly the disease could spread. I brushed his fears aside, as more evidence of his sweet and overly cautious nature. “It’ll be fine,” I said with misplaced confidence.
Later that day, I heard about the first death and the outbreak at Life Care, a nursing home north of Seattle. I learned that firefighters who had responded to distress calls were under quarantine. I learned through an epidemiologist that there were likely hundreds of undetected cases throughout Washington.
On Monday, our clinic decided to convert all cases with symptoms into telemedicine visits. Luckily, we had been building the capacity to see and treat patients virtually for a while. We have ramped up quickly, but there have been bumps along the way. It’s difficult to convince those who are anxious about their symptoms to allow us to use telemedicine for everyone’s safety. It is unclear how much liability we are taking on as individual providers with this approach or who will speak up for us if something goes wrong.
Patients don’t seem to know where to get their information, and they have been turning to increasingly bizarre sources. For the poorest, who have had so much trouble accessing care, I cannot blame them for not knowing whom to trust. I post what I know on Twitter and Facebook, but I know I’m no match for cynical social media algorithms.
Testing was still not available at my clinic the first week of March, and it remains largely unavailable throughout much of the country. We have lost weeks of opportunity to contain this. Luckily, on March 4, the University of Washington was finally allowed to use their homegrown test and bypass the limited supply from the CDC. But our capacity at UW is still limited, and the test remained unavailable to the majority of those potentially showing symptoms until March 9.
I am used to being less worried than my patients. I am used to reassuring them. But over the first week of March, I had an eerie sense that my alarm far outstripped theirs. I got relatively few questions about coronavirus, even as the number of cases continued to rise. It wasn’t until the end of the week that I noticed a few were truly fearful. Patients started stealing the gloves and the hand sanitizer, and we had to zealously guard them. My hands are raw from washing.
Throughout this time, I have been grateful for a centralized drive with clear protocols. I am grateful for clear messages at the beginning and end of the day from our CEO. I hope that other clinics model this and have daily in-person meetings, because too much cannot be conveyed in an email when the situation changes hourly.
But our health system nationally was already stretched thin before, and providers have sacrificed a lot, especially in the most critical settings, to provide decent patient care. Now we are asked to risk our health and safety, and our family’s, and I worry about the erosion of trust and work conditions for those on the front lines. I also worry our patients won’t believe us when we have allowed the costs of care to continue to rise and ruin their lives. I worry about the millions of people without doctors to call because they have no insurance, and because so many primary care physicians have left unsustainable jobs.
I am grateful that few of my colleagues have been sick and that those that were called out. I am grateful for the new nurse practitioners in our clinic who took the lion’s share of possibly affected patients and triaged hundreds of phone calls, creating note and message templates that we all use. I am grateful that my clinic manager insisted on doing a drill with all the staff members.
I am grateful that we were reminded that we are a team and that if the call center and cleaning crews and front desk are excluded, then our protocols are useless. I am grateful that our registered nurses quickly shifted to triage. I am grateful that I have testing available.
This week, for the first time since I started working, multiple patients asked how I am doing and expressed their thanks. I am most grateful for them.
I can’t tell you what to do or what is going to happen, but I can tell you that you need to prepare now. You need to run drills and catch the holes in your plans before the pandemic reaches you. You need to be creative and honest about the flaws in your organization that this pandemic will inevitably expose. You need to meet with your team every day and remember that we are all going to be stretched even thinner than before.
Most of us will get through this, but many of us won’t. And for those who do, we need to be honest about our successes and failures. We need to build a system that can do better next time. Because this is not the last pandemic we will face.
Dr. Elisabeth Poorman is a general internist at a University of Washington neighborhood clinic in Kent. She completed her residency at Cambridge (Mass.) Health Alliance and specializes in addiction medicine. She also serves on the editorial advisory board of Internal Medicine News.
KENT, WASHINGTON – The first thing I learned in this outbreak is that my sense of alarm has been deadened by years of medical practice. As a primary care doctor working south of Seattle, in the University of Washington’s Kent neighborhood clinic, I have dealt with long hours, the sometimes-insurmountable problems of the patients I care for, and the constant, gnawing fear of missing something and doing harm. To get through my day, I’ve done my best to rationalize that fear, to explain it away.
I can’t explain how, when I heard the news of the coronavirus epidemic in China, I didn’t think it would affect me. I can’t explain how news of the first patient presenting to an urgent care north of Seattle didn’t cause me, or all health care providers, to think about how we would respond. I can’t explain why so many doctors were dismissive of the very real threat that was about to explode. I can’t explain why it took 6 weeks for the COVID-19 outbreak to seem real to me.
If you work in a doctor’s office, emergency department, hospital, or urgent care center and have not seen a coronavirus case yet, you may have time to think through what is likely to happen in your community. We did not activate a chain of command or decide how information was going to be communicated to the front line and back to leadership. Few of us ran worst-case scenarios.
By March 12, we had 376 confirmed cases, and likely more than a thousand are undetected. The moment of realization of the severity of the outbreak didn’t come to me until Saturday, Feb. 29. In the week prior, several patients had come into the clinic with symptoms and potential exposures, but not meeting the narrow Centers for Disease Control and Prevention testing criteria. They were all advised by the Washington Department of Health to go home. At the time, it seemed like decent advice. Frontline providers didn’t know that there had been two cases of community transmission weeks before, or that one was about to become the first death in Washington state. I still advised patients to quarantine themselves. In the absence of testing, we had to assume everyone was positive and should stay home until 72 hours after their symptoms resolved. Studying the state’s FMLA [Family and Medical Leave Act] intently, I wrote insistent letters to inflexible bosses, explaining that their employees needed to stay home.
I worked that Saturday. Half of my patients had coughs. Our team insisted that they wear masks. One woman refused, and I refused to see her until she did. In a customer service–oriented health care system, I had been schooled to accommodate almost any patient request. But I was not about to put my staff and other patients at risk. Reluctantly, she complied.
On my lunch break, my partner called me to tell me he was at the grocery store. “Why?” I asked, since we usually went together. It became clear he was worried about an outbreak. He had been following the news closely and tried to tell me how deadly this could get and how quickly the disease could spread. I brushed his fears aside, as more evidence of his sweet and overly cautious nature. “It’ll be fine,” I said with misplaced confidence.
Later that day, I heard about the first death and the outbreak at Life Care, a nursing home north of Seattle. I learned that firefighters who had responded to distress calls were under quarantine. I learned through an epidemiologist that there were likely hundreds of undetected cases throughout Washington.
On Monday, our clinic decided to convert all cases with symptoms into telemedicine visits. Luckily, we had been building the capacity to see and treat patients virtually for a while. We have ramped up quickly, but there have been bumps along the way. It’s difficult to convince those who are anxious about their symptoms to allow us to use telemedicine for everyone’s safety. It is unclear how much liability we are taking on as individual providers with this approach or who will speak up for us if something goes wrong.
Patients don’t seem to know where to get their information, and they have been turning to increasingly bizarre sources. For the poorest, who have had so much trouble accessing care, I cannot blame them for not knowing whom to trust. I post what I know on Twitter and Facebook, but I know I’m no match for cynical social media algorithms.
Testing was still not available at my clinic the first week of March, and it remains largely unavailable throughout much of the country. We have lost weeks of opportunity to contain this. Luckily, on March 4, the University of Washington was finally allowed to use their homegrown test and bypass the limited supply from the CDC. But our capacity at UW is still limited, and the test remained unavailable to the majority of those potentially showing symptoms until March 9.
I am used to being less worried than my patients. I am used to reassuring them. But over the first week of March, I had an eerie sense that my alarm far outstripped theirs. I got relatively few questions about coronavirus, even as the number of cases continued to rise. It wasn’t until the end of the week that I noticed a few were truly fearful. Patients started stealing the gloves and the hand sanitizer, and we had to zealously guard them. My hands are raw from washing.
Throughout this time, I have been grateful for a centralized drive with clear protocols. I am grateful for clear messages at the beginning and end of the day from our CEO. I hope that other clinics model this and have daily in-person meetings, because too much cannot be conveyed in an email when the situation changes hourly.
But our health system nationally was already stretched thin before, and providers have sacrificed a lot, especially in the most critical settings, to provide decent patient care. Now we are asked to risk our health and safety, and our family’s, and I worry about the erosion of trust and work conditions for those on the front lines. I also worry our patients won’t believe us when we have allowed the costs of care to continue to rise and ruin their lives. I worry about the millions of people without doctors to call because they have no insurance, and because so many primary care physicians have left unsustainable jobs.
I am grateful that few of my colleagues have been sick and that those that were called out. I am grateful for the new nurse practitioners in our clinic who took the lion’s share of possibly affected patients and triaged hundreds of phone calls, creating note and message templates that we all use. I am grateful that my clinic manager insisted on doing a drill with all the staff members.
I am grateful that we were reminded that we are a team and that if the call center and cleaning crews and front desk are excluded, then our protocols are useless. I am grateful that our registered nurses quickly shifted to triage. I am grateful that I have testing available.
This week, for the first time since I started working, multiple patients asked how I am doing and expressed their thanks. I am most grateful for them.
I can’t tell you what to do or what is going to happen, but I can tell you that you need to prepare now. You need to run drills and catch the holes in your plans before the pandemic reaches you. You need to be creative and honest about the flaws in your organization that this pandemic will inevitably expose. You need to meet with your team every day and remember that we are all going to be stretched even thinner than before.
Most of us will get through this, but many of us won’t. And for those who do, we need to be honest about our successes and failures. We need to build a system that can do better next time. Because this is not the last pandemic we will face.
Dr. Elisabeth Poorman is a general internist at a University of Washington neighborhood clinic in Kent. She completed her residency at Cambridge (Mass.) Health Alliance and specializes in addiction medicine. She also serves on the editorial advisory board of Internal Medicine News.
CBD: What physicians need to know about it
Cannabidiol is a derivative of marijuana that is sold everywhere from medical marijuana stores to health food markets to gas stations. While this chemical is derived from marijuana plants, it can be sold in many states as a supplement and is largely unregulated. The ubiquity of cannabidiol (CBD) and its potential benefits means that doctors need to be able to counsel patients about what we know, what we don’t, and how to use it safely. For conditions such as chronic pain and addiction, where we have few safe and effective alternatives, CBD may be reasonable to recommend.
To find out what physicians need to know about CBD, Elisabeth Poorman, MD, a general internist at a University of Washington neighborhood clinic in Kent and member of the editorial advisory board of Internal Medicine News, interviewed Peter Grinspoon, MD, who provides free consultation to primary care patients on the benefits and risks of using various forms of cannabis, including CBD. Dr. Grinspoon is an internist at Massachusetts General Hospital Chelsea Healthcare Center and is an instructor at Harvard Medical School, Boston. He has contributed to the Harvard Health Blog on the topic of medical marijuana, delivered grand rounds on cannabis at Massachusetts General Hospital, and lectured at the American College of Physicians. Dr. Grinspoon is also medical director for Galenas, a medical marijuana company.
Dr. Grinspoon is the son of Lester Grinspoon, MD, associate professor emeritus of psychiatry at Harvard Medical School, who researched the medicinal legitimacy of marijuana prohibition and has authored books on the medical benefits of marijuana.
and his knowledge of CBD’s efficacy for various medical conditions. Below are excerpts from that conversation.
Dr. Poorman: How do you explain the difference between THC and CBD to patients?
Dr. Grinspoon: Cannabis contains at least a hundred different chemicals called cannabinoids, of which tetrahydrocannabinol (THC) and CBD are the most prevalent. THC is the one that gets you high and can be used recreationally and medically. The CBD molecule is not intoxicating, and people use it for a variety of medical purposes, most commonly to treat anxiety, insomnia, and pain.
Dr. Poorman: There are a lot of gaps in what we now about CBD’s potential benefits. Why don’t we know more?
Dr. Grinspoon: CBD has no abuse liability according to the World Health Organization, but because it is a cannabinoid, it is still technically a schedule I substance under the Controlled Substances Act, and that makes it difficult to study.
Dr. Poorman: What kinds of conditions can CBD treat?
Dr. Grinspoon: In anxiety, the enthusiasm has outpaced the science; there’s no question about that. And most of the studies have done in animals. That said, some studies have shown that CBD helps treat components of anxiety, like public speaking. Unlike THC, it is nonintoxicating and non–habit forming. But we don’t have the wealth of randomized controlled trials that we have for official psychiatric medications.
CBD’s benefits have been most extensively studied in pediatric epilepsy. The one Food and Drug Administration–approved drug derived from cannabis is Epidiolex, used to treat rare forms of childhood epilepsy. There is some evidence that as an adjunct, it can be used for glioblastoma multiforme in patients receiving other appropriate therapy. There is also some preliminary evidence that it can be used for addiction, including to opioids, cannabis, tobacco, and stimulants.
Most of the evidence for using CBD in chronic pain comes from animal studies, including a study published in the European Journal of Pain in 2016. Among my patients to whom I have suggested CBD for chronic pain, a few have noticed great benefit, a few have noticed some benefit, and a lot have noticed no benefit. For those who have said they noticed benefit it is unclear whether that benefit was just the placebo effect.
In insomnia, I usually have them take CBD under the tongue half an hour time before bedtime, or if it’s an edible, an hour before bedtime. I start with a lower dose and slowly try higher doses. I also encourage them to do the other sleep hygiene things, like no screens, increasing exercise, and decreasing caffeine. It seems that CBD helps them fall asleep, though it’s hard to know if it’s the CBD or the fact that they have started taking something, and have simultaneously made various lifestyle changes.
Dr. Poorman: Can CBD interfere with your normal sleep architecture, the way benzodiazepines and Benadryl can?
Dr. Grinspoon: We know that THC affects your sleep architecture and affects what percentage of REM sleep you have. But I don’t know if the effects of CBD on sleep architecture have been studied.
Dr. Poorman: What harms do you counsel patients about when discussing CBD?
Dr. Grinspoon: There are four main harms. The first is the price. It’s overpriced, and the doses are very low. In most animal studies, the doses are about 20 milligrams per kilogram of weight. And you go to the market, and it’s like a dollar for a hundredth of that.
Number two is that it’s not regulated; it’s a supplement. A few years ago, the government tested a bunch of samples of CBD, and some didn’t actually contain CBD, some didn’t have the right amount; and worse, some contained THC that had not been disclosed in the packaging. So you can’t just go to a roadside gas station and assume that if you buy CBD, it’s actually that. You want a place that has a certificate of assurance. Make sure third-party testing was done, including testing for pesticides and other heavy metals.
The third thing is drug interactions. It affects the body like grapefruit and inhibits the cytochrome P450 system. The medications doctors should be most concerned about are blood thinners like Coumadin. And if you’re on blood thinners, you definitely want to tell your doctor that you are on CBD and he or she might want to check your blood levels more frequently than they usually do.
The fourth concern is liver inflammation. In the childhood epilepsy studies, a bump in some liver enzymes was seen, although I haven’t heard of any clinically significant cases of chemical hepatitis related to CBD. But if someone has liver disease you want to keep an eye on their liver enzymes.
Dr. Poorman: What methods of ingestion do you recommend or not recommend?
Dr. Grinspoon: It’s basically trial and error, but I usually recommend oral form. If people feel comfortable taking a gummy bear, or a pill, I’m not particular about that. If the product being taken contains less than 0.3% THC, it won’t get you high.
The topical form probably works better for treating chronic pain if it contains some THC, suggests a review article published in the Cleveland Clinic Journal of Medicine. Topical THC is nonintoxicating, unless you managed to sit in a bathtub for 8 hours after applying it.
I don’t recommend smoking CBD, and right now, I don’t recommend vaping anything.
If people have severe pain, like moderately severe arthritis, CBD may not be enough, whereas medical cannabis with THC could help, a report suggests.
Dr. Poorman: Do you ever encourage patients to stop using CBD products?
Dr. Grinspoon: I work in a low-income area, and my patients don’t have a ton of disposable income. If it’s not working, I worry about the expense.
Dr. Poorman: The CBD industry is growing quickly. What changes are you seeing in what products are out there, and what changes would you like to see?
Dr. Grinspoon: CBD is being put in everything, and it’s comical. On the one hand, you can say if people want to waste their money on a CBD emitting pillowcase, that’s fine. On the other hand, you can say that certainly seems like misleading advertising, because a CBD emitting pillowcase isn’t going to help you sleep any better.
I think the purported benefits are far beyond what we can say scientifically. We do know that CBD has anti-inflammatory characteristics. But that doesn’t mean that putting CBD in all skin products is good for your skin. It’s bad for your pocketbook, though. I would like there to be less of a gap between the claims and the science.
Dr. Elisabeth Poorman has no conflicts to disclose.
Cannabidiol is a derivative of marijuana that is sold everywhere from medical marijuana stores to health food markets to gas stations. While this chemical is derived from marijuana plants, it can be sold in many states as a supplement and is largely unregulated. The ubiquity of cannabidiol (CBD) and its potential benefits means that doctors need to be able to counsel patients about what we know, what we don’t, and how to use it safely. For conditions such as chronic pain and addiction, where we have few safe and effective alternatives, CBD may be reasonable to recommend.
To find out what physicians need to know about CBD, Elisabeth Poorman, MD, a general internist at a University of Washington neighborhood clinic in Kent and member of the editorial advisory board of Internal Medicine News, interviewed Peter Grinspoon, MD, who provides free consultation to primary care patients on the benefits and risks of using various forms of cannabis, including CBD. Dr. Grinspoon is an internist at Massachusetts General Hospital Chelsea Healthcare Center and is an instructor at Harvard Medical School, Boston. He has contributed to the Harvard Health Blog on the topic of medical marijuana, delivered grand rounds on cannabis at Massachusetts General Hospital, and lectured at the American College of Physicians. Dr. Grinspoon is also medical director for Galenas, a medical marijuana company.
Dr. Grinspoon is the son of Lester Grinspoon, MD, associate professor emeritus of psychiatry at Harvard Medical School, who researched the medicinal legitimacy of marijuana prohibition and has authored books on the medical benefits of marijuana.
and his knowledge of CBD’s efficacy for various medical conditions. Below are excerpts from that conversation.
Dr. Poorman: How do you explain the difference between THC and CBD to patients?
Dr. Grinspoon: Cannabis contains at least a hundred different chemicals called cannabinoids, of which tetrahydrocannabinol (THC) and CBD are the most prevalent. THC is the one that gets you high and can be used recreationally and medically. The CBD molecule is not intoxicating, and people use it for a variety of medical purposes, most commonly to treat anxiety, insomnia, and pain.
Dr. Poorman: There are a lot of gaps in what we now about CBD’s potential benefits. Why don’t we know more?
Dr. Grinspoon: CBD has no abuse liability according to the World Health Organization, but because it is a cannabinoid, it is still technically a schedule I substance under the Controlled Substances Act, and that makes it difficult to study.
Dr. Poorman: What kinds of conditions can CBD treat?
Dr. Grinspoon: In anxiety, the enthusiasm has outpaced the science; there’s no question about that. And most of the studies have done in animals. That said, some studies have shown that CBD helps treat components of anxiety, like public speaking. Unlike THC, it is nonintoxicating and non–habit forming. But we don’t have the wealth of randomized controlled trials that we have for official psychiatric medications.
CBD’s benefits have been most extensively studied in pediatric epilepsy. The one Food and Drug Administration–approved drug derived from cannabis is Epidiolex, used to treat rare forms of childhood epilepsy. There is some evidence that as an adjunct, it can be used for glioblastoma multiforme in patients receiving other appropriate therapy. There is also some preliminary evidence that it can be used for addiction, including to opioids, cannabis, tobacco, and stimulants.
Most of the evidence for using CBD in chronic pain comes from animal studies, including a study published in the European Journal of Pain in 2016. Among my patients to whom I have suggested CBD for chronic pain, a few have noticed great benefit, a few have noticed some benefit, and a lot have noticed no benefit. For those who have said they noticed benefit it is unclear whether that benefit was just the placebo effect.
In insomnia, I usually have them take CBD under the tongue half an hour time before bedtime, or if it’s an edible, an hour before bedtime. I start with a lower dose and slowly try higher doses. I also encourage them to do the other sleep hygiene things, like no screens, increasing exercise, and decreasing caffeine. It seems that CBD helps them fall asleep, though it’s hard to know if it’s the CBD or the fact that they have started taking something, and have simultaneously made various lifestyle changes.
Dr. Poorman: Can CBD interfere with your normal sleep architecture, the way benzodiazepines and Benadryl can?
Dr. Grinspoon: We know that THC affects your sleep architecture and affects what percentage of REM sleep you have. But I don’t know if the effects of CBD on sleep architecture have been studied.
Dr. Poorman: What harms do you counsel patients about when discussing CBD?
Dr. Grinspoon: There are four main harms. The first is the price. It’s overpriced, and the doses are very low. In most animal studies, the doses are about 20 milligrams per kilogram of weight. And you go to the market, and it’s like a dollar for a hundredth of that.
Number two is that it’s not regulated; it’s a supplement. A few years ago, the government tested a bunch of samples of CBD, and some didn’t actually contain CBD, some didn’t have the right amount; and worse, some contained THC that had not been disclosed in the packaging. So you can’t just go to a roadside gas station and assume that if you buy CBD, it’s actually that. You want a place that has a certificate of assurance. Make sure third-party testing was done, including testing for pesticides and other heavy metals.
The third thing is drug interactions. It affects the body like grapefruit and inhibits the cytochrome P450 system. The medications doctors should be most concerned about are blood thinners like Coumadin. And if you’re on blood thinners, you definitely want to tell your doctor that you are on CBD and he or she might want to check your blood levels more frequently than they usually do.
The fourth concern is liver inflammation. In the childhood epilepsy studies, a bump in some liver enzymes was seen, although I haven’t heard of any clinically significant cases of chemical hepatitis related to CBD. But if someone has liver disease you want to keep an eye on their liver enzymes.
Dr. Poorman: What methods of ingestion do you recommend or not recommend?
Dr. Grinspoon: It’s basically trial and error, but I usually recommend oral form. If people feel comfortable taking a gummy bear, or a pill, I’m not particular about that. If the product being taken contains less than 0.3% THC, it won’t get you high.
The topical form probably works better for treating chronic pain if it contains some THC, suggests a review article published in the Cleveland Clinic Journal of Medicine. Topical THC is nonintoxicating, unless you managed to sit in a bathtub for 8 hours after applying it.
I don’t recommend smoking CBD, and right now, I don’t recommend vaping anything.
If people have severe pain, like moderately severe arthritis, CBD may not be enough, whereas medical cannabis with THC could help, a report suggests.
Dr. Poorman: Do you ever encourage patients to stop using CBD products?
Dr. Grinspoon: I work in a low-income area, and my patients don’t have a ton of disposable income. If it’s not working, I worry about the expense.
Dr. Poorman: The CBD industry is growing quickly. What changes are you seeing in what products are out there, and what changes would you like to see?
Dr. Grinspoon: CBD is being put in everything, and it’s comical. On the one hand, you can say if people want to waste their money on a CBD emitting pillowcase, that’s fine. On the other hand, you can say that certainly seems like misleading advertising, because a CBD emitting pillowcase isn’t going to help you sleep any better.
I think the purported benefits are far beyond what we can say scientifically. We do know that CBD has anti-inflammatory characteristics. But that doesn’t mean that putting CBD in all skin products is good for your skin. It’s bad for your pocketbook, though. I would like there to be less of a gap between the claims and the science.
Dr. Elisabeth Poorman has no conflicts to disclose.
Cannabidiol is a derivative of marijuana that is sold everywhere from medical marijuana stores to health food markets to gas stations. While this chemical is derived from marijuana plants, it can be sold in many states as a supplement and is largely unregulated. The ubiquity of cannabidiol (CBD) and its potential benefits means that doctors need to be able to counsel patients about what we know, what we don’t, and how to use it safely. For conditions such as chronic pain and addiction, where we have few safe and effective alternatives, CBD may be reasonable to recommend.
To find out what physicians need to know about CBD, Elisabeth Poorman, MD, a general internist at a University of Washington neighborhood clinic in Kent and member of the editorial advisory board of Internal Medicine News, interviewed Peter Grinspoon, MD, who provides free consultation to primary care patients on the benefits and risks of using various forms of cannabis, including CBD. Dr. Grinspoon is an internist at Massachusetts General Hospital Chelsea Healthcare Center and is an instructor at Harvard Medical School, Boston. He has contributed to the Harvard Health Blog on the topic of medical marijuana, delivered grand rounds on cannabis at Massachusetts General Hospital, and lectured at the American College of Physicians. Dr. Grinspoon is also medical director for Galenas, a medical marijuana company.
Dr. Grinspoon is the son of Lester Grinspoon, MD, associate professor emeritus of psychiatry at Harvard Medical School, who researched the medicinal legitimacy of marijuana prohibition and has authored books on the medical benefits of marijuana.
and his knowledge of CBD’s efficacy for various medical conditions. Below are excerpts from that conversation.
Dr. Poorman: How do you explain the difference between THC and CBD to patients?
Dr. Grinspoon: Cannabis contains at least a hundred different chemicals called cannabinoids, of which tetrahydrocannabinol (THC) and CBD are the most prevalent. THC is the one that gets you high and can be used recreationally and medically. The CBD molecule is not intoxicating, and people use it for a variety of medical purposes, most commonly to treat anxiety, insomnia, and pain.
Dr. Poorman: There are a lot of gaps in what we now about CBD’s potential benefits. Why don’t we know more?
Dr. Grinspoon: CBD has no abuse liability according to the World Health Organization, but because it is a cannabinoid, it is still technically a schedule I substance under the Controlled Substances Act, and that makes it difficult to study.
Dr. Poorman: What kinds of conditions can CBD treat?
Dr. Grinspoon: In anxiety, the enthusiasm has outpaced the science; there’s no question about that. And most of the studies have done in animals. That said, some studies have shown that CBD helps treat components of anxiety, like public speaking. Unlike THC, it is nonintoxicating and non–habit forming. But we don’t have the wealth of randomized controlled trials that we have for official psychiatric medications.
CBD’s benefits have been most extensively studied in pediatric epilepsy. The one Food and Drug Administration–approved drug derived from cannabis is Epidiolex, used to treat rare forms of childhood epilepsy. There is some evidence that as an adjunct, it can be used for glioblastoma multiforme in patients receiving other appropriate therapy. There is also some preliminary evidence that it can be used for addiction, including to opioids, cannabis, tobacco, and stimulants.
Most of the evidence for using CBD in chronic pain comes from animal studies, including a study published in the European Journal of Pain in 2016. Among my patients to whom I have suggested CBD for chronic pain, a few have noticed great benefit, a few have noticed some benefit, and a lot have noticed no benefit. For those who have said they noticed benefit it is unclear whether that benefit was just the placebo effect.
In insomnia, I usually have them take CBD under the tongue half an hour time before bedtime, or if it’s an edible, an hour before bedtime. I start with a lower dose and slowly try higher doses. I also encourage them to do the other sleep hygiene things, like no screens, increasing exercise, and decreasing caffeine. It seems that CBD helps them fall asleep, though it’s hard to know if it’s the CBD or the fact that they have started taking something, and have simultaneously made various lifestyle changes.
Dr. Poorman: Can CBD interfere with your normal sleep architecture, the way benzodiazepines and Benadryl can?
Dr. Grinspoon: We know that THC affects your sleep architecture and affects what percentage of REM sleep you have. But I don’t know if the effects of CBD on sleep architecture have been studied.
Dr. Poorman: What harms do you counsel patients about when discussing CBD?
Dr. Grinspoon: There are four main harms. The first is the price. It’s overpriced, and the doses are very low. In most animal studies, the doses are about 20 milligrams per kilogram of weight. And you go to the market, and it’s like a dollar for a hundredth of that.
Number two is that it’s not regulated; it’s a supplement. A few years ago, the government tested a bunch of samples of CBD, and some didn’t actually contain CBD, some didn’t have the right amount; and worse, some contained THC that had not been disclosed in the packaging. So you can’t just go to a roadside gas station and assume that if you buy CBD, it’s actually that. You want a place that has a certificate of assurance. Make sure third-party testing was done, including testing for pesticides and other heavy metals.
The third thing is drug interactions. It affects the body like grapefruit and inhibits the cytochrome P450 system. The medications doctors should be most concerned about are blood thinners like Coumadin. And if you’re on blood thinners, you definitely want to tell your doctor that you are on CBD and he or she might want to check your blood levels more frequently than they usually do.
The fourth concern is liver inflammation. In the childhood epilepsy studies, a bump in some liver enzymes was seen, although I haven’t heard of any clinically significant cases of chemical hepatitis related to CBD. But if someone has liver disease you want to keep an eye on their liver enzymes.
Dr. Poorman: What methods of ingestion do you recommend or not recommend?
Dr. Grinspoon: It’s basically trial and error, but I usually recommend oral form. If people feel comfortable taking a gummy bear, or a pill, I’m not particular about that. If the product being taken contains less than 0.3% THC, it won’t get you high.
The topical form probably works better for treating chronic pain if it contains some THC, suggests a review article published in the Cleveland Clinic Journal of Medicine. Topical THC is nonintoxicating, unless you managed to sit in a bathtub for 8 hours after applying it.
I don’t recommend smoking CBD, and right now, I don’t recommend vaping anything.
If people have severe pain, like moderately severe arthritis, CBD may not be enough, whereas medical cannabis with THC could help, a report suggests.
Dr. Poorman: Do you ever encourage patients to stop using CBD products?
Dr. Grinspoon: I work in a low-income area, and my patients don’t have a ton of disposable income. If it’s not working, I worry about the expense.
Dr. Poorman: The CBD industry is growing quickly. What changes are you seeing in what products are out there, and what changes would you like to see?
Dr. Grinspoon: CBD is being put in everything, and it’s comical. On the one hand, you can say if people want to waste their money on a CBD emitting pillowcase, that’s fine. On the other hand, you can say that certainly seems like misleading advertising, because a CBD emitting pillowcase isn’t going to help you sleep any better.
I think the purported benefits are far beyond what we can say scientifically. We do know that CBD has anti-inflammatory characteristics. But that doesn’t mean that putting CBD in all skin products is good for your skin. It’s bad for your pocketbook, though. I would like there to be less of a gap between the claims and the science.
Dr. Elisabeth Poorman has no conflicts to disclose.