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Aniracetam

Aniracetam molecule structureAniracetam molecule structure
N-Anisoyl-2-pyrrolidinone
Draganon, Sarpul, Ampamet, Memodrin, ReferanOpen in Piru
Psychoactive Class
Chemical Class
Racetam

Aniracetam is described as a cognition enhancer1 in the racetam family2, developed by Roche Pharmaceutical. It combines anisoyl and 2-pyrrolidinone moieties in a substituted imide structure1 and is distinguished from piracetam and related racetams by an anisoyl ring bearing a para methoxy group. Reports characterize its effects as emphasizing physical stimulation more than cognitive stimulation, although human efficacy remains limited.

Dosage & Duration

Dosage

Doses are population estimates that vary widely between individuals.

Threshold350 mg
Light500-1200 mg
Moderate1500 mg
Strong1800-2400 mg
Heavy2400+ mg

Duration

Onset45-90 minutes
Total3-5 hours

Subjective Effects

Subjective Effects not written up yet

Reagent Testing

Expected colorimetric results for common reagent tests. Colors show reaction change over 1–2 minutes.

Mandelin(MD)
yellow2 → green2
Marquis(MQ)
No reaction
No reaction
Mecke(ME)
No reaction
No reaction
Ehrlich(EH)
No reaction
No reaction
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Pharmacology

Pharmacodynamics

Aniracetam positively modulates AMPA receptors3. It is thought to increase acetylcholine release in hippocampal cells, which may contribute to its effects on memory and cognition. Additional modulation of GABAergic and dopaminergic neurotransmission has been reported, and a rat study found nonselective monoamine oxidase inhibitor activity. The active metabolite N-anisoyl-GABA may contribute substantially to increased acetylcholine release and, together with other metabolites, may increase dopamine and stimulate nicotinic acetylcholine receptors in rat models.

Pharmacokinetics

After oral ingestion, aniracetam is rapidly broken down by first-pass hepatic metabolism. N-anisoyl-GABA accounts for approximately 70–80% of the primary metabolites, while 2-pyrrolidinone and p-anisic acid together account for approximately 20–30%. During the first few hours after oral administration, plasma concentrations are generally 5–15 μg/L for aniracetam and 5–15 mg/L for N-anisoyl-GABA.

Interactions

Dangerous

Highest risk

These combinations are considered extremely harmful and should always be avoided. Reactions to these drugs taken in combination are highly unpredictable and have a potential to cause death.

MAOIs
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Tolerance

Tolerance timelines are rules of thumb, not exact schedules, and vary widely between individuals and use patterns.

Full Tolerance
Tolerance to many effects develops with prolonged and repeated use, potentially requiring increasingly large doses to achieve the same effects.
Baseline Reset
In the absence of further consumption, tolerance returns to baseline in about 1–2 weeks.
Half Tolerance
After prolonged and repeated use, tolerance takes about 3–7 days to reduce to half.
Cross Tolerance

Possible cross-tolerance with racetam nootropics (including coluracetam and piracetam), which may have reduced effects after aniracetam use.

Harm Potential

Toxicity

Lethal Dosage

The exact toxic dosage is unknown.

History & Culture

Development and early classification

Aniracetam was first made in the 1970s by Hoffmann-La Roche. It became known as one of the first synthesized derivatives of piracetam and was classified as a nootropic in the racetam family.

Legality

By Country

Controlled / restricted3
United States flagUnited StatesRestricted
Japan flagJapanRestricted
Singapore flagSingaporeRestricted
Prescription1
Australia flagAustraliaPrescription only
Legal / decriminalized1
Finland flagFinlandLegal (regulated)

References

Source Pages

  1. Drug Users Bible by Dominic Milton Trott
  2. DrugBank: Aniracetam (DB03913)
  3. DrugBank: Aniracetam (DB04599)
  4. Erowid
  5. Erowid: Aniracetam Vault
  6. Isomer Design (TiHKAL/PiHKAL)
  7. PsychonautWiki
  8. TripSit Factsheets
  9. Wikipedia

Citations

  1. Disposition Pharmacokinetics and Metabolism of Aniracetam in Animals. Drug Investigation (1993). https://doi.org/10.1007/bf0325842912
  2. Classification Status of Racetams. Medsafe (n.d.). https://medsafe.govt.nz/profs/class/Agendas/agen53Racetams.pdf1
  3. Excitatory amino acids and neuronal plasticity: modulation of AMPA receptors as a novel substrate for the action of nootropic drugs. PubMed (n.d.). https://pubmed.ncbi.nlm.nih.gov/133805312
  4. Effects of the novel compound aniracetam (Ro 13-5057) upon impaired learning and memory in rodents. PubMed (1982). https://doi.org/10.1007/bf004322441
  5. Aniracetam (Ro 13-5057) in the treatment of senile dementia of Alzheimer type (SDAT): results of a placebo controlled multicentre clinical study. PubMed (1991). https://doi.org/10.1016/0924-977x(91)90004-e1
  6. Clinical efficacy of aniracetam, either as monotherapy or combined with cholinesterase inhibitors, in patients with cognitive impairment: a comparative open study. PubMed (2011). https://doi.org/10.1111/j.1755-5949.2010.00244.x1
  7. MHLW Pharmaceutical Safety and Environmental Health Bureau Monitoring and Narcotics Control Division Notice Yakusei-Kanma 1126 No. 3 (26 Nov 2018), effective 1 Jan 2019. mhlw.go.jp (n.d.). https://www.mhlw.go.jp/web/t_doc?dataId=00tc3785&dataType=1&pageNo=11
  8. Lääkealan turvallisuus- ja kehittämiskeskuksen päätös lääkeluettelosta 230/2025 (Finland Medicine List), issued under Medicines Act 395/1987, section 6. finlex.fi (n.d.). https://finlex.fi/fi/lainsaadanto/2025/2301
  9. Lääkealan turvallisuus- ja kehittämiskeskuksen päätös lääkeluettelosta 230/2025 (Finland Medicine List), issued under Medicines Act 395/1987, section 6. finlex.fi (n.d.). https://www.finlex.fi/api/media/statute/670705/media/8294.pdf1
  10. Lääkealan turvallisuus- ja kehittämiskeskuksen päätös lääkeluettelosta 230/2025 (Finland Medicine List), issued under Medicines Act 395/1987, section 6. finlex.fi (n.d.). https://finlex.fi/fi/lainsaadanto/1987/395/muutoshistoria/201611011

Further Reading

  1. Examine: .com - Aniracetam overview
  2. Kaneko et al. 1991 - Effects of cerebroprotective drugs on NMDA channel function
  3. Lee & Benfield 1994 - Aniracetam: pharmacodynamic and pharmacokinetic properties review
  4. Ling & Benardo 2005 - Nootropic agents enhance fast GABA inhibition in neocortex
  5. Nakamura & Kurasawa 2001 - Anxiolytic effects of aniracetam in mouse models
  6. Nakamura et al. 2000 - Pharmacokinetics of aniracetam in healthy volunteers
  7. Paterniti et al. 2010 - Aniracetam as an anxiolytic AMPAkine
  8. PubChem: 2159
  9. PubChem: Aniracetam (CID 2196)
  10. Stancheva & Alova 1988 - Effect of aniracetam on monoamine oxidase activity
  11. Zhao et al. 2001 - Nootropic drug modulation of nicotinic acetylcholine receptors

Article Status

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