can-nabis
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Medical & Research

What the science says

Cannabis isn't a cure-all and it isn't a punchline. For many conditions the evidence is real and growing. Below is a plain-language snapshot — with sources you can verify yourself.

Informational only — not medical advice. Always talk to a clinician familiar with your situation.

From the owner

Why Crohn's is at the top of this list

The person who bought this domain in 2010 has Crohn's disease. The pain, the unpredictability, the anxiety, the sleep loss — cannabis took the edge off when nothing else reliably did. That doesn't mean it will work the same for you. It does mean this site won't treat IBD patients as an afterthought.

Crohn's disease & IBD

Moderate evidence

Patient-reported relief of pain, appetite loss, nausea, and inflammation is consistent across surveys. Small clinical trials have shown symptom improvement and quality-of-life gains, though long-term inflammation outcomes are still being studied.

Chronic pain

Strong evidence

The National Academies of Sciences (2017) found 'substantial evidence' that cannabis is effective for chronic pain in adults. Often used to reduce opioid reliance.

Chemotherapy-induced nausea & vomiting

Strong evidence

Decades of evidence support antiemetic effects, including for chemotherapy patients. FDA-approved synthetic cannabinoids (dronabinol, nabilone) exist for this exact use.

Multiple sclerosis (spasticity)

Strong evidence

Strong evidence that oral cannabinoids reduce patient-reported MS spasticity. Sativex (nabiximols) is approved in many countries.

Pediatric epilepsy (Dravet, Lennox-Gastaut)

Strong evidence

Epidiolex (purified CBD) is FDA-approved for these rare seizure disorders and has dramatically reduced seizure frequency in many patients.

PTSD

Moderate evidence

Many veterans and trauma survivors report sleep and hypervigilance improvements. Clinical research expanding, with several controlled trials underway.

Anxiety

Moderate evidence

CBD has shown anxiolytic effects in trials. THC effects are dose-dependent — low doses may help, higher doses may worsen anxiety in some.

Sleep disorders

Moderate evidence

Mixed but generally positive evidence for short-term sleep onset; long-term effects on sleep architecture less clear.

Cancer cachexia & appetite loss

Moderate evidence

Strong appetite-stimulating effects well-documented; quality-of-life benefits for patients undergoing aggressive treatment.

Inflammatory skin conditions

Emerging evidence

Topical cannabinoids show early promise in eczema, psoriasis, and atopic dermatitis. More research needed.

Migraine & cluster headache

Emerging evidence

Observational studies report meaningful reductions in frequency and intensity; randomized trials are catching up.

Where to read more

We won't cherry-pick the data. Here are primary sources, mainstream reviews, and active research trackers.