Gas Station Molly: 5-MAPB, 6-APB and Kanna

Not medical advice. Harm reduction information for people who have already decided to use. In an emergency, call your local emergency number. Some links are affiliate links; we may earn a commission at no cost to you. As an Amazon Associate we earn from qualifying purchases.

Contents

Benzofurans: the ones that actually act like MDMA
Kanna: a serotonin drug, not a party drug
Do the MDMA rules apply?
Mixing with MDMA
The bottom line
Sources

“Gas station molly” and “legal molly” usually mean one of two things. The first is benzofurans, such as 5-MAPB and 6-APB, sold as pressed pills online and in some head shops. They really do act like MDMA, and in animal studies they are stronger per milligram, so every MDMA safety rule applies at a lower dose. The second is kanna, a plant sold as “natural molly.” It works more like a mild SSRI than like MDMA, and mixing it with MDMA is the combination to avoid. Most other legal highs on the counter are opioids or sedatives, and they have nothing to do with molly; our gas station drugs guide covers 7-OH, tianeptine, phenibut and the rest.

Quick answers

Is there a legal drug that feels like MDMA? The closest are the benzofurans 5-MAPB and 6-APB. They release serotonin, dopamine and noradrenaline much as MDMA does. They are not federally scheduled, but they can be prosecuted as MDMA analogues.

Is 5-MAPB safer than MDMA? There is no evidence that it is. It was more potent than MDMA in rat studies, the known poisonings look like MDMA poisonings, and it carries one heart risk MDMA does not.

Is kanna natural molly? No. It blocks serotonin reuptake rather than releasing serotonin, and in trials it produced a mild calming effect, not a roll.

Do normal MDMA rules apply? For benzofurans, all of them. For kanna, the key rule is never combining it with other serotonin drugs.

Can you take them with MDMA? No. Benzofurans plus MDMA doubles the heat and heart strain, and kanna plus MDMA is a serotonin stack.

Benzofurans: the ones that actually act like MDMA

5-MAPB, 6-APB and their relatives belong to a family nicknamed “benzofury.” In September 2026, DoubleBlind reported 5-MAPB being sold as blue pressed pills in California head shops and online under the Voyager Labs brand. Users describe it as slower and less stimulating than MDMA.

The pharmacology is close to MDMA’s, and stronger. In cell studies from the University of Basel, benzofurans blocked serotonin and noradrenaline transporters more than dopamine, the same pattern as MDMA, and released all three chemicals like classic amphetamines (PMID 25765500). In rat brain tissue, 5-APB, 6-APB, 5-MAPB and 6-MAPB released monoamines at least three times more potently than MDA and MDMA, and injected 5-APB and 6-APB raised brain serotonin and dopamine more potently than MDA (PMID 32875347). That is lab and rat data, not a human dose conversion, but the direction is clear: a pill dosed like MDMA may hit harder.

The documented harms match MDMA’s. A lab-confirmed 5-MAPB poisoning in Switzerland involved overheating, high blood pressure, heart strain, tremor, muscle jerking, hallucinations and seizures. It needed cooling and heavy sedation. The drug’s half-life was 6.5 hours, close to MDMA’s (PMID 27156124). Deaths have been reported: a 25-year-old died after 5-APB with only a little alcohol and THC on board (PMID 30228015), and another person after 5-MAPB combined with the tryptamine AMT (PMID 38649548). These are single case reports, the weakest tier of evidence, and human data on these drugs is thin.

One risk MDMA does not share. Most benzofurans also activate the 5-HT2B receptor, which the Basel group flagged because it is linked to heart valve damage (PMID 25765500). That is a cell-level finding with no human cases yet, and the concern would apply to repeated use rather than one night.

A caution without a paper behind it. Matthew Baggott, whose company develops MDMA-like compounds, told DoubleBlind that high doses of 5-MAPB can lower serotonin for a long time in rats. We could not find that result published, so treat it as a reason for caution, not a finding.

Legal status. 5-MAPB and 6-APB are not federally scheduled, but federal prosecutors can treat them as analogues of MDMA and MDA when they are sold for people to take, and the DEA has flagged both. “Not scheduled” does not mean legal to sell as a drug.

Kanna: a serotonin drug, not a party drug

Kanna (Sceletium tortuosum) is a South African plant sold in capsules, tinctures and “euphoria” blends. It blocks serotonin reuptake and inhibits an enzyme called PDE4. The human research is small but real:

A 25 mg dose calmed the brain’s threat response on fMRI in 16 healthy volunteers (PMID 23903032).
A single 25 mg dose modestly lowered anxiety before a public speaking task (PMID 32761980).
8 to 25 mg daily for three months was well tolerated in 37 adults (PMID 23441963). That trial was run with the extract’s developer and did not measure benefits.

That is a mild anti-anxiety effect, not a roll. Retail products often contain far more than 25 mg, and nobody checks what is in them. We found no published human case of kanna causing serotonin syndrome, so the interaction warning below rests on how the drugs work rather than on reported cases.

Do the MDMA rules apply?

For benzofurans, every one of them:

Start lower than an MDMA dose, and don’t redose. The effects come on slowly, which tempts people to take more.
Heat and water: take cooling breaks, and sip water rather than chugging it. Our heat and hydration guide covers both sides of that.
No SSRIs, SNRIs, MAOIs, tramadol, kanna or 5-HTP. See our MDMA and antidepressants guide.
Space your sessions as you would with MDMA, since the serotonin effects overlap.
Test anyway. A pill sold as 5-MAPB may contain something else. Only lab analysis confirms a benzofuran, but a reagent kit will flag an obvious substitution.

For kanna: the main rule is the serotonin rule. Do not take it with MDMA, benzofurans, antidepressants, MAOIs or 5-HTP.

Mixing with MDMA

Benzofurans plus MDMA: two releasers at once. Heat, blood pressure and serotonin load all stack. Do not combine.
Kanna plus MDMA or benzofurans: MDMA floods the brain with serotonin and kanna stops it being cleared. This is the combination most likely to push toward serotonin syndrome. Learn the signs in our serotonin syndrome guide.
Any of these plus an unknown pill: treat it as unknown. Our interaction checker covers common pairs.

The bottom line

If a legal molly pill really is a benzofuran, it is an MDMA-class drug that is probably stronger per milligram, so give it all of MDMA’s precautions at a lower dose. Kanna is a mild serotonin drug that does not belong in the same night as either. For MDMA itself, see our MDMA harm reduction guide, and for the opioids and sedatives also sold at gas stations, see our gas station drugs guide.

Sources