CannabisScienceFacts.com
Topic

CBD

5 evidence-graded facts. Click any card for the full summary and sources.

STRONG EVIDENCE

CBD does not make you high

CBD does not meaningfully activate CB1 receptors and produces no intoxication at normal doses. WHO's Expert Committee on Drug Dependence concluded CBD shows no abuse or dependence potential. "Cannabis without the high" is, for CBD alone, accurate.

CBD
STRONG EVIDENCE

CBD is an approved medicine for severe childhood epilepsy

Purified CBD (Epidiolex) is FDA- and EMA-approved for Dravet syndrome, Lennox-Gastaut syndrome and TSC-related seizures, cutting seizure frequency in randomized controlled trials. This is the gold standard of cannabinoid evidence: real RCTs, real approval.

CBD
STRONG EVIDENCE

CBD products are frequently mislabeled

A landmark JAMA study testing 84 online CBD products found only ~31% accurately labeled; many under-delivered CBD, and 21% contained unlabeled THC. Regulated markets with lab testing largely fix this — unregulated ones do not.

CBD
STRONG EVIDENCE

CBD interacts with common medications — the "grapefruit rule" applies

CBD inhibits CYP450 enzymes (notably CYP3A4 and CYP2C19) that metabolize many drugs: blood thinners, anti-epileptics, some antidepressants. If a medication carries a grapefruit warning, treat CBD the same way and ask a pharmacist.

CBD
LIMITED EVIDENCE

CBD for anxiety: promising, early, and probably dose-dependent

Small human trials show CBD reducing experimentally induced anxiety (e.g., simulated public speaking), but large definitive trials are missing, and effective doses in studies (300–600mg) dwarf most retail products (10–25mg). The molecule is interesting; the average gummy is underdosed.

CBD