Complete dosage information for Piracetam — threshold, light, common, strong, and heavy dose ranges across 1 route of administration.
Full Piracetam profileImportant Safety Notice
Dosage information is for harm reduction purposes only. Individual sensitivity varies greatly. Always start with the lowest effective dose and work your way up slowly. Never eyeball doses — use a milligram scale.
## Overdose Profile Fatal overdose from piracetam is essentially impossible at any realistic dose. The oral LD50 in rats is 8-10 g/kg, and no human fatalities from piracetam overdose have ever been reported in the medical literature. Piracetam has been described as having one of the widest therapeutic indices of any substance used in clinical medicine. ## Excessive Dose Effects At very high doses (10-20+ grams), the following adverse effects have been reported: - **Headache** — the most prominent symptom, resulting from excessive acetylcholine demand exceeding choline availability - **Gastrointestinal distress** — nausea, diarrhea, and abdominal discomfort from the sheer volume of substance ingested - **Insomnia and agitation** — overstimulation of glutamatergic systems - **Nervousness and irritability** — paradoxical anxiety that resolves as the dose clears - **Muscle twitching** — rarely reported at very high doses ## Management In the unlikely event of piracetam ingestion at extreme doses, management is entirely supportive. No specific antidote is needed or exists. Activated charcoal may be considered if administered within 1 hour of ingestion. Since piracetam is excreted unchanged by the kidneys, maintaining adequate hydration and renal function is the primary clinical consideration. Hemodialysis can remove piracetam but is unlikely to ever be necessary given the compound's low toxicity.
A common Oral dose of Piracetam is 1600–4800 mg.
The threshold dose for Piracetam via Oral is approximately 400 mg.
Piracetam typically lasts 4–8 hours via Oral.
