Nootropic
Oxiracetam
Also known as: 4-hydroxy-2-oxopyrrolidine-N-acetamide
Water-soluble racetam enhancing logical thinking and concentration. Mild stimulating properties.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Logical thinking
- Concentration
- Memory
- Learning
How it works
- Modulates glutamate
- Mild stimulant properties
- Enhances logical processing
Dosage
- Typical range
- 800-2400 mg daily divided
- Timing
- Morning and early afternoon
- With food
- Optional
- Duration
- Acute and long-term
- Special populations
- Analytical tasks, studying
Forms
- Capsules
- Powder
Safety
Common side effects
- Headache
- Insomnia
- Irritability
Contraindications
- None
Evidence notes
Logic and concentration focused
Grade B: Some human trials support key claims; further confirmation needed.
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.