Using Marijuana to Treat Anxiety
Can medical marijuana treat anxiety? The evidence is limited, and CDC says cannabis use can itself cause feelings of anxiety and paranoia.
Part of the difficulty is that anxiety is supposed to be good for us.
When we feel anxious, it means our body is warning us that danger is ahead. It’s why we look both ways before crossing the street and avoid areas of a forest where we know the grizzly bears are hanging out.
Anxiety helps us stay alive. It’s like your own home security system, only it’s inside you.
The problem is when you can’t turn that security system off.
Imagine if you had a home alarm system going off all the time, even though there’s nobody breaking into the house. It would wear you down fast, and you’d want out of that house.
That’s what an anxiety disorder can feel like, and it is common: NIMH estimates 19.1% of U.S. adults had one in the past year. It’s so pervasive and enduring that it interferes with your ability to work, sleep, maintain healthy relationships with others, and be happy.
So can you use medical marijuana to treat anxiety?
The answer is unclear. NIH calls the evidence small, resting partly on one study of 24 people with social anxiety disorder who took CBD, and cannabis itself can cause anxiety and paranoia, CDC says.
How Medical Marijuana Affects the Body
When you use medical marijuana, its active ingredients, cannabinoids, interact with your body’s endocannabinoid system.
(The name matters less than what the system does.)
So what does your endocannabinoid system do?
Well, a lot actually; among other things, it is involved in regulating mood and stress.
The key point:
Marijuana’s cannabinoids act on that system, though acting on it is not the same as treating anxiety.
The two most popular cannabinoids are THC and CBD.
THC is known mostly for its psychoactive effect, the marijuana “high,” and CBD is popular because people hope it eases anxiety, though NIH calls that evidence small.
Both THC and CBD are studied for other uses, but here we focus on anxiety.
The amounts of THC and CBD in a product shape its effects, but a 2019 review of 83 studies found scarce evidence for anxiety, so no ratio has been proven to treat it.
What is CBD:THC Ratio?
The CBD:THC ratio of a product is pretty straight forward; it’s the amount of CBD in a product compared to the amount of THC.
For example, a 0:1 ratio means a product contains THC but essentially no CBD.
Others might have a 2:1 ratio, which means the product contains twice as much CBD as it does THC.
Because THC gets you “high,” many patients make the mistake of thinking that the best products are the ones with the most of THC.
Even for nerve pain, a 2026 review found no clear evidence that THC-dominant medicines give major relief, and with THC, more does not equal better.
Especially for anyone managing anxiety.
Because if you take too much THC, you may experience anxiety as a side effect, which is something you want to avoid if you’re using medical marijuana for anxiety.
Does CBD Counteract THC’s Side Effects?
Some people believe CBD and THC work better together, an idea called “the entourage effect,” but a trial that gave people CBD with THC found no protective effect.
But in a 2023 randomized trial of 46 healthy adults who rarely use cannabis, adding CBD at 1:1 to 3:1 ratios did not reduce THC’s effects on memory or psychotic symptoms.
So if you’re thinking about using marijuana for anxiety, know that a higher CBD ratio may not protect you from THC’s unwanted effects.
In the 2023 trial, adding CBD did not change how high people felt, so more CBD does not reliably mean you will feel more relaxed or less high.
Some patients prefer “CBD-favored” products during the day, but THC slows reaction time and affects coordination, so do not drive after using any product that contains it.
Medical Marijuana and Anxiety: Safety Points
- Don’t rely on indica or sativa labels. A 2022 analysis of commercial cannabis in six states found these labels do not consistently match the chemistry inside, including CBD content.
- Know what is in the product. In Florida, treatment centers must have products lab-tested before dispensing. There is no proven starting ratio for anxiety, so ask your physician about any product.
- Ask questions at the dispensary. Dispensary staff are not your doctor and cannot diagnose or treat anxiety.
- Think about set and setting. Your environment and the company you keep can shape your state of mind, and THC itself can cause anxiety and paranoia, CDC says. If anxiety is your main concern, ask your physician whether THC makes sense for you at all, rather than experimenting with where and how you use it.
- Try meditation or yoga on their own. Meditation and yoga help many people relax and notice their thoughts and emotions without getting pulled into them, and you do not need medical marijuana to try them.
- Thinking about edibles? Talk with your physician first. In Florida, a single edible serving may not exceed 10 mg of THC, and an edible product may not contain more than 200 mg.
- Most importantly, speak with your physician and/or mental health counselor before starting any treatment regimen. Not every anxiety disorder is the same, so if you’re considering using medical marijuana to treat your anxiety, please speak with your doctor first to see if marijuana truly is the right fit for you. And if you’re seeing a therapist or psychiatrist, be sure to inform them as well, so they can weigh in and track your progress.
Have questions about anxiety and Florida’s medical marijuana rules? Send them our way. You can reach us through our social media pages.
Anxiety on its own is not on Florida’s list; after examining you, a qualified physician may certify some cases if the condition is of the same kind or class as, or comparable to, one of the listed conditions other than a terminal condition or chronic nonmalignant pain; that decision is at the physician’s discretion, and certification is never promised. Floridians with a listed condition can book an appointment with our doctor to learn whether certification fits.
