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32 substances

Weight Loss & Metabolic Meds

GLP-1 pens, thyroid hormones, clenbuterol and the 'cutting' grey market. From counterfeit Ozempic-style pens to clenbuterol and T3 bought as 'research chemicals' — the weight-loss grey market sells powerful metabolic drugs with no medical oversight. Heart rhythm, thyroid collapse and refilled-pen scams are the signature harms.

100%of pre-launch grey-market GLP-1 sales are likely counterfeit
32profiles in this category
Rx-only — not controlled

Liothyronine (T3)

5/25/50 mcg tablets; grey-market 'research' versions

Effects & risks →
Rx-only — not controlled

Levothyroxine (T4)

25–300 mcg tablets by many manufacturers

Effects & risks →
OTC

Orlistat (Xenical/Alli)

Blue/white 60/120 mg capsules

Effects & risks →
Withdrawn

Sibutramine (Meridia)

10/15 mg capsules legacy; now appears HIDDEN in 'herbal slimming' pills

Effects & risks →
Rx-only — not controlled

Metformin

500/850/1000 mg tablets; XR versions

Effects & risks →
Supplement — unregulated

L-Carnitine

Capsules, liquids, injectable vials (grey)

Effects & risks →
Investigational — combination in Phase 3; grey 'research' sales premature

Cagrilintide

Lyophilized vials grey-market (no legit supply yet)

Effects & risks →
Phase 3 investigational — no approved supply

Survodutide

Grey-market 'research' vials only

Effects & risks →
Approved China

Mazdutide

Injection pens (legit CN supply); grey vials elsewhere

Effects & risks →
'Research chemical' — failed obesity trials; unscheduled

AOD-9604

Lyophilized 2–5 mg vials

Effects & risks →
'Research chemical' — never approved

Adipotide (FTPP)

Lyophilized vials grey-market

Effects & risks →
Rx-only everywhere

Semaglutide (Ozempic / Wegovy / Rybelsus)

Single-dose injection pens (0.25–2.4 mg weekly); oral tablets; a booming counterfeit-pen market

Effects & risks →
Rx-only

Tirzepatide (Mounjaro / Zepbound)

Single-dose injection pen (2.5–15 mg weekly) for the real drug; grey-market 'research' vials and lyophilized powder for the counterfeits

Effects & risks →
Investigational — not approved anywhere as of 2026; in Phase 3 trials; grey-market sale is unregulated

Retatrutide ('Reta')

Grey-market: lyophilized (freeze-dried) powder in vials, sold with bacteriostatic water for self-injection; no legitimate consumer product exists

Effects & risks →
Banned for human use everywhere; sold online as 'fat burner'

DNP (2,4-Dinitrophenol)

Yellow powder or capsules sold on bodybuilding forums

Effects & risks →
Legal supplement; banned by WADA-adjacent lists in sport

Synephrine (Bitter Orange)

Fat-burner and pre-workout ingredient, often stacked with caffeine

Effects & risks →
Unscheduled research compound — not approved anywhere

5-Amino-1MQ

Capsules and injectables sold by peptide vendors for 'metabolic enhancement'

Effects & risks →
Prescription only

Liraglutide (Saxenda / Victoza)

Injectable solution in a multi-dose pen, injected daily under the skin.

Effects & risks →
Withdrawn

Fen-Phen (Fenfluramine + Phentermine)

Combination of two prescription tablets taken together — fenfluramine (withdrawn) plus phentermine (still sold).

Effects & risks →
Withdrawn

Lorcaserin (Belviq)

Blue film-coated tablet taken twice daily.

Effects & risks →
Withdrawn

Rimonabant (Acomplia)

Film-coated tablet; a CB1 cannabinoid receptor blocker — effectively the opposite of cannabis.

Effects & risks →
Unapproved

Tesofensine

Capsules or powder sold by grey-market 'research chemical' and peptide vendors.

Effects & risks →
Schedule IV

Mazindol

Small tablets; an amphetamine-like appetite suppressant once prescribed for short-term weight loss.

Effects & risks →
Schedule IV

Diethylpropion (Tenuate)

White tablets or extended-release tablets; an amphetamine-type appetite suppressant.

Effects & risks →
Schedule III

Phendimetrazine (Bontril)

Capsules or tablets; a stimulant appetite suppressant chemically related to phenmetrazine.

Effects & risks →
Schedule III

Benzphetamine (Didrex)

Tablets; chemically close to methamphetamine (the body converts some of it into methamphetamine and amphetamine).

Effects & risks →
Prescription

Clobenzorex (Asenlix)

Green-and-yellow capsules sold in Mexican pharmacies; chemically converts to amphetamine in the body.

Effects & risks →
Prescription

Redotex ('Mexican Miracle Diet Pill')

Capsules containing a cocktail: norpseudoephedrine (stimulant), atropine, aloin (laxative), diazepam (benzodiazepine), and sometimes thyroid hormone.

Effects & risks →
Schedule IV

Qsymia (Phentermine + Topiramate)

Extended-release capsules combining phentermine (stimulant) and topiramate (anticonvulsant).

Effects & risks →
Banned in supplements

Ephedra / Ma Huang (Banned Dietary Supplement)

Dried herb or (historically) diet-pill capsules containing ephedrine alkaloids.

Effects & risks →
OTC

Senna and Laxative Abuse ('Detox Teas')

Herbal teas, gummies, and tablets marketed as 'detox', 'cleanse', or 'flat tummy' products; nearly all rely on the laxative senna.

Effects & risks →
Prescription only

Topiramate (Topamax) Weight-Loss Misuse

Tablets or sprinkle capsules approved for epilepsy and migraine prevention — widely prescribed off-label for weight loss.

Effects & risks →