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Weight Loss & Metabolic Meds

Qsymia (Phentermine + Topiramate)

Street names: qsymia, Qnexa, phentermine topiramate, qsiva

⚡What it does

  • Among the strongest approved weight-loss drugs — 8-10% average loss
  • Appetite suppression
  • Reduced food cravings

⚠Key risks

  • Birth defects (cleft palate) — strict pregnancy prevention required
  • The EU refused approval over long-term cardiovascular and psychiatric concerns
  • Raised heart rate
  • Tingling, insomnia, mood changes
  • Topiramate can impair memory and concentration

✚Overdose signs

  • Severe agitation
  • Racing heart
  • Confusion
  • Rapid breathing

Category comparison — Weight Loss & Metabolic Meds

SubstanceClassTop risksStreet price
Qsymia (Phentermine + Topiramate)Schedule IVBirth defects (cleft palate) — strict pregnancy prevention required; The EU refused approval over long-term cardiovascular and psychiatric concernsUS price roughly $100-200/month
Liothyronine (T3)Rx-only — not controlledAt abuse doses: cardiac arrhythmia, heart failure, bone loss; Muscle catabolism — the 'cut' comes with your muscle~$0.50–$2 per tablet grey-market
Levothyroxine (T4)Rx-only — not controlledOvertreatment = hyperthyroid state: palpitations, anxiety, bone loss; Taking it without hypothyroidism provides little benefit at real risk~$0.10–$0.50 per tablet
Orlistat (Xenical/Alli)OTCOily stools, urgency, flatulence — the famous GI sides if you eat fatty; Fat-soluble vitamin absorption drops (take a multivitamin)~$0.50–$2 per capsule
Sibutramine (Meridia)WithdrawnWITHDRAWN worldwide for cardiovascular events (strokes, heart attacks in the SCOUT trial); Survives in adulterated supplements — buyers don't know they're taking it~$0.50–$2 per capsule illicit
MetforminRx-only — not controlledGI upset (diarrhea, nausea) — titrate slowly; Lactic acidosis — rare, dangerous, mostly in kidney disease~$0.05–$0.30 per tablet
Street prices are regional estimates. Potency and cuts vary constantly.

?Frequently asked questions

What does Qsymia (Phentermine + Topiramate) look like?

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

What are the signs of a Qsymia (Phentermine + Topiramate) overdose?

Severe agitation; Racing heart; Confusion Call emergency services immediately.

How addictive is it?

Birth defects (cleft palate) — strict pregnancy prevention required Dependence can develop with regular use.

🔗Sources & further reading

Facts on this page are compiled from these primary sources. External links open in a new tab.