Cannabis and Therapy: What You Need to Know

Cannabis and therapy have a complicated relationship. Many people bring cannabis into their mental health routines long before they bring it up in therapy. Cannabis can feel useful in the moment, especially when stress, anxiety, or sleep problems are wearing you down. A therapist can help you look beyond the immediate relief and notice whether it is making daily life easier, creating new problems, or becoming something you rely on more than you meant to. 

Talking openly about your cannabis use can help your therapist understand the full picture so that you can make better choices about your mental health with the right support. 

What Does Cannabis Have to Do With Therapy?

Cannabis use matters in therapy because it may affect the symptoms, habits, and coping patterns your therapist is helping you understand. 

A therapist may look at your overall lifestyle and how you manage your well-being. Your cannabis use is an important part of your therapy profile. The American Counseling Association recommends counselors ask specific questions about cannabis use in patient discussions.

Key questions include “What does cannabis do for you, and when do you reach for it?” These inquiries help therapists understand how cannabis use affects your issues, like sleep, anxiety, and mood, and how cannabis fits into your routine.  

Therapy focuses on mental health factors and what is currently helping you, hurting you, or has become automatic. Cannabis use can be clinically relevant.

How to Talk to Your Therapist About Cannabis

The best way to talk to your therapist about cannabis is to be open. Therapists follow legal and ethical guidelines, and your information is confidential.

You can ask your therapist directly if they are comfortable discussing cannabis as part of therapy.  Simply saying you use weed likely won’t give your therapist enough information to understand how cannabis fits into your life. 

The therapist may ask about:

• What you use: product type, THC/CBD content, and dose 
• How you use it: how often, what time of day, and in what situations
• Why you use it: sleep, anxiety, mood, stress, appetite, pain, or other reasons
• How it affects you: what feels better, what feels worse, and whether it affects memory, motivation, relationships, work, or therapy progress
• Whether use feels hard to control: using more than planned, needing more over time, or feeling uncomfortable without it

Honest answers to these topics will help your therapist to direct you to healthy long-term coping skills.

What If You’re Afraid Your Therapist Will Judge You?

It is understandable to feel cautious about bringing up cannabis in therapy. Some patients worry their therapist will overreact, dismiss the benefits they feel, or blame cannabis for every symptom they mention.

A good therapist should be respectful. They should also be honest with you.

If cannabis seems to be helping, that is useful information. If it seems to be affecting your mood, sleep, motivation, memory, relationships, or therapy progress, that matters too. Your therapist may ask direct questions or offer observations you were not expecting. That doesn’t mean they are judging you. It may mean they are trying to understand the full picture so they can help you make better choices.

Try to stay open to that conversation. Therapy works best when both people can be honest, even when the topic feels uncomfortable.

How to Find a Cannabis-Friendly Therapist

A cannabis-friendly therapist is a mental health professional who can discuss cannabis thoughtfully and without stigma. 

Trained therapists understand cannabis can have different outcomes. Cannabis can make some people feel calmer, sleep better, or help manage symptoms, but for others (or if dosage is too high) it may worsen anxiety or mood instability. There's also evidence linking cannabis to increased risk of psychosis in people who are predisposed to it.

A cannabis-friendly therapist doesn’t necessarily mean they use cannabis or recommend cannabis as a treatment. It should mean they are prepared to offer helpful insight and direction, informed by research. 

You can ask your certifying cannabis physician for recommendations, or search for cannabis or 420-friendly therapists in your area.

What Is Cannabis-Assisted Therapy?

Cannabis-assisted therapy generally refers to therapy that intentionally includes cannabis as part of the therapeutic process, typically before or during a session. In cannabis-assisted therapy, a facilitator administers the cannabis in a prescribed dose.

Cannabis-assisted therapy is a novel approach among practitioners who believe cannabis may help certain clients feel less guarded, more emotionally open, or more aware of where they hold tension in the body during therapy. While cannabis is widely available in many states, cannabis-assisted therapy is mostly limited to specialized clinical practices.

Cannabis-assisted therapy is generally limited to jurisdictions where cannabis use is legal under state or local law. Patients should look for licensed mental health professionals who have experience or training in cannabis-assisted therapy and risk reduction. 

What Does the Research Say About Cannabis and Mental Health?

The research on cannabis and mental health is mixed. 

Some studies suggest possible short-term symptom relief for anxiety, insomnia, PTSD-related symptoms, or some substance-use outcomes. Other studies show no clear benefit or, depending on the patient’s conditions and dosage, the potential to increase symptom severity. This is why individuals who are considering incorporating cannabis as part of their treatment regiment should speak to a qualified medical cannabis practitioner first.

In 2021, a survey found only eight small controlled studies of cannabinoids for mood disorders, anxiety disorders, and PTSD. Given the limited number and size of studies, the authors concluded that there wasn’t enough evidence to support CBD or THC as effective treatments for those conditions.¹

Some people do feel better when they use cannabis. These small studies did note that CBD or low-dose THC did reduce anxiety symptoms. And in one very small study of 10 patients, THC used alongside conventional treatment was associated with fewer PTSD-related nightmares.

THC may be riskier for people with certain psychiatric conditions. Cannabis, especially high-THC strains, may heighten anxiety, panic, and paranoia in some cases. And some evidence suggests cannabis use may worsen manic symptoms in people with bipolar disorder.²

The bottom line of this research concludes that data isn’t adequate to consider cannabis a full replacement for therapy, psychiatric medication, or other evidence-based care. But for some patients and conditions, and with the support of a qualified practitioner, it can be a beneficial addition to a wellness plan.

Cannabis and Mental Health Medications

Cannabis has the potential to interact with common mental health medications. If you take medication for anxiety, depression, sleep, bipolar disorder, PTSD, ADHD, or another mental health condition, talk with your clinician before changing your cannabis use.

For example, SSRIs, such as sertraline, fluoxetine, escitalopram, and citalopram, are among the most common antidepressants. THC and CBD can affect enzymes involved in drug metabolism, which may alter medication levels or side effects in some patients. 

Cannabis may also increase sedation when combined with medications that already cause drowsiness, including benzodiazepines, some sleep medications, and some anxiety medications. 

The concern is not only whether cannabis makes a medication stronger or weaker. Cannabis can make side effects harder to interpret. If someone starts using more THC and then feels anxious, foggy, or emotionally flat, it may be challenging to determine whether the cause is the medication, cannabis, the underlying condition, or a combination of all of these.

Do not stop, start, or adjust psychiatric medication without talking to the prescriber first, even if cannabis seems to be helping.

For some patients, cannabis may be a helpful tool. For others, it may complicate anxiety, mood, motivation, sleep, medication effects, or therapy progress. 

A cannabis-friendly therapist can help you weigh the risks and the benefits of using cannabis for mental health.

References

1. Stanciu CN, Brunette MF, Teja N, Budney AJ. Evidence for Use of Cannabinoids in Mood Disorders, Anxiety Disorders, and PTSD: A Systematic Review. Psychiatric Services. 2021;72(4):appi.ps.2020001. doi:https://doi.org/10.1176/appi.ps.202000189 ↩︎
2. de Bode N, Kroon E, Sznitman SR, Cousijn J. The differential effects of medicinal cannabis on mental health: A systematic review. Clinical Psychology Review. 2025;118:102581. doi:https://doi.org/10.1016/j.cpr.2025.102581 ↩︎

The information in this article and any included images or charts are for educational purposes only. This information is neither a substitute for, nor does it replace, professional legal advice or medical advice, diagnosis, or treatment. If you have any concerns or questions about laws, regulations, or your health, you should always consult with an attorney, physician or other licensed professional.