Overdose or emergency? Call now Hotlines · US 911 · UK 999 · EU 112 · AU 000 · IN 112 · 988 (US crisis) Hotlines
5
Performance & Grey-Market Pharma

5-HTP (5-Hydroxytryptophan)

Street names: 5-HTP, Oxitriptan, Griffonia extract, The serotonin precursor

⚡What it does

  • Direct serotonin precursor: mild mood/sleep effects; post-MDMA recovery folklore

⚠Key risks

  • SEROTONIN SYNDROME when stacked with SSRIs, MDMA, tramadol, or MAOIs — the 'harmless supplement' interacts fatally with the party calendar
  • Heart-valve concern (chronic high-dose serotonin load, rodent signals)
  • Eosinophilia-myalgia syndrome from a contaminated 1980s supply (historic, why quality matters)
  • Daytime grogginess, vivid dreams

✚Overdose signs

  • Agitation, clonus, fever (serotonin syndrome in combos)
  • Nausea, drowsiness

Category comparison — Performance & Grey-Market Pharma

SubstanceClassTop risksStreet price
5-HTP (5-Hydroxytryptophan)Supplement — unregulated US/UK/EUSEROTONIN SYNDROME when stacked with SSRIs, MDMA, tramadol, or MAOIs — the 'harmless supplement' interacts fatally with the party calendar; Heart-valve concern (chronic high-dose serotonin load, rodent signals)$10–$25 per bottle
AICAR (Acadesine)UnscheduledNo human safety data — cancer-risk flags in cell studies; Sold as research chemical, zero quality control~$50–$150 per gram
Clenbuterol HClNot approved for human useRacing heart, arrhythmia, tremors; Overdose: dangerous potassium shifts, cardiac events~$0.50–$2 per 40 mcg tablet
Anastrozole (Arimidex)Rx-onlyBone density loss, joint pain with long-term use; Crash estrogen too low → depression, libido loss~$2–$8 per 1 mg tablet
Liraglutide (Saxenda)Rx-only — not a controlled drugSold grey-market at huge markups with counterfeit/refilled pens; Nausea, pancreatitis risk~$200–$500 per pen grey-market
Naltrexone–Bupropion (Contrave)Rx-only — not controlledBupropion lowers seizure threshold; Misuse for stimulant-like effect is possible but weak~$1–$4 per tablet grey-market
Street prices are regional estimates. Potency and cuts vary constantly.

?Frequently asked questions

What does 5-HTP (5-Hydroxytryptophan) look like?

50–400 mg capsules from Griffonia simplicifolia seed extract

What are the signs of a 5-HTP (5-Hydroxytryptophan) overdose?

Agitation, clonus, fever (serotonin syndrome in combos); Nausea, drowsiness Call emergency services immediately.

How addictive is it?

SEROTONIN SYNDROME when stacked with SSRIs, MDMA, tramadol, or MAOIs — the 'harmless supplement' interacts fatally with the party calendar 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.