Cognition

Oxiracetam

Synthetic racetam nootropic studied for memory support in age-related cognitive decline, with very limited evidence in healthy adults.

score

evidence

Caution

risk

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Use with caution

This supplement may interact with medications, medical conditions or sensitive populations. Review safety before use.

Overview

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Safety

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Quick Take

Skip unless you are in a clinical trial—evidence in healthy adults is too weak to justify use.

Oxiracetam is a synthetic racetam compound developed in the 1970s and investigated primarily as a prescription drug for cognitive impairment in Europe. It is chemically related to piracetam but is claimed to have slightly more stimulatory properties. Human research consists mainly of small, older randomized trials in elderly patients with dementia or organic brain syndrome, where it has shown modest improvements on memory and attention scales compared with placebo.

Potential benefits

May improve memory in dementia

May support attention in elderly

May reduce cognitive fatigue

May improve processing speed

Protocol

Amount

800-2400 mg

Frequency

Split into 2-3 doses

When

Morning and early afternoon; avoid late-day dosing due to potential insomnia.

Onset Time

1-4 weeks in trials; acute effects in healthy adults unstudied.

Who Should Consider

Adults with mild cognitive impairment (medical supervision)

Participants in formal nootropic research studies

How It Works

Oxiracetam appears to modulate acetylcholine and glutamate neurotransmission, particularly interacting with AMPA-sensitive glutamate receptors (ampakine-like activity). It may increase high-affinity choline uptake and cerebral phospholipid metabolism, though most mechanistic work is preclinical.

Updated 5/19/2026