Microdosing in Miami: what the research shows and what Florida law says

The short answer

Microdosing psilocybin is illegal in Miami. Florida's Schedule I listing covers anything that contains "any quantity" of psilocybin, so a microdose is still possession of a controlled substance, a third-degree felony.¹² Ordering it by mail is illegal under federal law and in every state; no state permits mail-order psilocybin.

The science is unsettled. In the best-controlled studies so far, people who microdosed psilocybin mostly did no better on mood, well-being or thinking than people given a placebo, and research hasn't established that microdosing is safe.⁴⁵⁶¹⁰

This site is published by the team behind My Mushroom Dispensary, an online shop for adults 21+ with microdose capsules sold in three strengths on its menu, and that doesn't change the law: buying or possessing them in Florida is a felony.

Is microdosing legal in Miami or anywhere in Florida?

No. Florida lists psilocybin at 893.03(1)(c)33. and psilocyn at (c)34., covering "any material, compound, mixture, or preparation that contains any quantity" of either.¹ Possessing any amount is a third-degree felony under 893.13(6)(a), and buying it is a third-degree felony under 893.13(2)(a)2. Florida's small-amount misdemeanor applies only to cannabis.²

The form doesn't matter: capsules, powder, gummies and chocolates are treated the same if they contain psilocybin or psilocyn. We found no Florida city or county that has decriminalized or deprioritized psilocybin; our bill tracker has the record, and our penalties guide explains what a charge can mean.

Where is microdosing legal in the US?

Nowhere under federal law, which lists psilocybin in Schedule I. No state lets you buy psilocybin to take home, in a store or by mail. Two states have legal systems, each with tight limits:

• Oregon: adults 21 and older can take psilocybin only in a supervised session at a licensed service center. "The administration session is the only time a client may purchase and consume psilocybin products," and "Products may not be purchased and taken off-site."¹³
• Colorado: state law lets adults 21 and older share natural medicine, with "no personal possession limit," but it bans selling it outside the licensed system and bans "open and public display or consumption." Licensed access means a supervised session, and most regulated natural medicine "will be available to participants at a Healing Center."¹⁴ It remains illegal under federal law.

New Mexico's medical program hasn't opened, and cities elsewhere that deprioritized enforcement didn't make psilocybin legal under their states' laws. Our guide to legal psilocybin near Miami covers each option.

What did placebo-controlled microdosing studies find?

People who microdose on their own know what they're taking, which makes expectation hard to separate from the drug. Placebo-controlled studies test that, and their results are mostly null.

• Self-blinding study, eLife, 2021. 191 people who already microdosed psychedelics built placebo controls into their routine from online instructions. The microdose group improved on every psychological measure, "however, the placebo group also improved and no significant between-groups differences were observed." Small acute differences "can be explained by participants breaking blind."³
• Psilocybin mushrooms, double-blind, Translational Psychiatry, 2022. In 34 people starting to microdose, effects felt stronger than placebo only for those who correctly guessed what they got. There was no evidence of better well-being, creativity or cognition, "except for few small changes towards cognitive impairment," and the authors concluded "expectation underlies at least some of the anecdotal benefits."⁴
• Preregistered crossover study, Journal of Psychopharmacology, 2022. Psilocybin microdosing "did not affect emotion processing or symptoms of anxiety and depression compared with placebo," and participants broke blind in the second block.⁵
• Two longitudinal trials, Neuropharmacology, 2026. The authors report that "microdosing did not significantly affect behavioral or subjective measures compared to placebo," although "negative bodily feelings were enhanced in the active condition."⁶
• Creativity, three pooled trials (171 people), Neuropharmacology, 2026. A narrow positive signal: microdosing raised the share of original answers in a divergent-thinking task, with no effect on other divergent-thinking scores or on convergent thinking.⁷
• Meta-analysis, CNS Drugs, 2026. This review of psychedelic microdosing in healthy adults found 24 studies (3,681 participants), but only two randomized trials (117 people) could be pooled on symptoms. Those trials "showed no clear evidence of immediate symptom reduction" for depression, anxiety or stress, and adverse events were similar with microdosing and controls.⁸

What don't we know yet?

Whether microdosing does anything useful is still open. A 2024 review of 19 placebo-controlled studies by Vince Polito and Paul Liknaitzky found measurable changes in brain activity, physiology, mood and cognition compared with placebo, and concluded "it is not yet possible to determine whether microdosing is a placebo." Their reasons include few controlled studies, small samples, few administrations studied and only non-clinical participants.⁹ So the trials say little about people with diagnosed depression or anxiety.

Long-term safety is the bigger gap. The National Institute on Drug Abuse says "research to date has not established that microdosing is safe or effective."¹⁰ A 2023 review of lab, animal and clinical data on psilocybin and other psychedelics concluded that heart valve disease "is a potential risk with chronic psychedelic microdosing, but further studies are necessary to better define this risk."¹¹

What are the risks and drug interactions?

The interaction evidence below comes mainly from full psychedelic experiences, not microdosing, so treat it as a warning rather than a measured risk.

• Lithium: in an analysis of online reports, "47% of 62 lithium plus psychedelic reports involved seizures," and 39% involved medical attention.¹²
• Antidepressants: a 2025 scoping review of 18 studies reported no increased risk of serotonin syndrome when antidepressants were combined with classic psychedelics, particularly psilocybin, but some studies found the psychedelic's effects were blunted, and the authors listed knowledge gaps that need randomized, placebo-controlled trials.¹⁵ That doesn't make any combination safe for you. Don't stop or change a prescription on your own; that's a conversation for your prescriber.
• Heart and blood pressure: psilocybin "typically raises blood pressure and heart rate, which may be dangerous for people with heart conditions."¹⁰
• Pregnancy: "There is no data on the safety of taking psilocybin during pregnancy, for either a mother or a developing baby."¹⁰
• Mental health history: psilocybin trials routinely exclude people with a personal or family history of psychosis or bipolar disorder; our trials guide shows the criteria.
• Mystery products: NIDA, citing the CDC, notes that some "candies marketed as containing psilocybin have also been found to contain toxic chemicals and have caused severe illness."¹⁰ See our page on mushroom gummies and chocolates.

Call 911 right away if someone collapses, has a seizure, has trouble breathing or can't be woken, or whenever you're unsure. Poison Control (1-800-222-1222) also answers questions about a reaction. Our safety guide and help page list Miami resources.