Citicoline (CDP-Choline)

Reviewed by the HeyPsych Medical Review Board

Board-certified psychiatrists and mental health professionals

Published September 2, 2026•Updated September 2, 2026•Reviewed September 2, 2026

Indications

Primary Indications

Cognitive enhancementAttention and working memoryStroke recovery (adjunct)Support in neurodegenerative disorders

Mechanism

Citicoline increases the availability of choline for acetylcholine synthesis, enhances phosphatidylcholine production for neuronal membranes, and supports mitochondrial function. It may improve dopaminergic and glutamatergic transmission, contributing to cognitive and attentional benefits.

Dosing

Adult Dosing

typical: 500–2,000 mg/day in divided doses

note: Often used at 1,000–2,000 mg/day in clinical trials.

Dosage Forms

Capsules
Tablets
Powder
Liquid

Onset Duration

Onset: 2–4 weeks for cognitive effects; Duration: sustained with continued use.

Adverse Effects

Common Side Effects

• Headache

• Insomnia

• Gastrointestinal upset

⚠️ Serious Side Effects

Hypotension (rare)

Warnings

Critical Safety Information

→May cause mild overstimulation in sensitive individuals.
→Limited data on long-term use beyond 6 months.

Interactions

With: Cholinergic agents (donepezil, rivastigmine)

Risk: Additive cholinergic effects

Action: Monitor for cholinergic side effects

With: Stimulants (amphetamine, methylphenidate)

Risk: Possible additive effects on attention and arousal

Action: Monitor response

Monitoring

Clinical response in attention, cognition, and mood

Special Populations

👶Pregnancy

Insufficient safety data; avoid high-dose supplementation

🤱Breastfeeding

Unknown safety; use caution

👧Children & Adolescents (Under 18)

Not well studied; limited use in ADHD trials

👴Older Adults (65+)

Generally well tolerated; may aid cognitive decline

Tapering

No taper required; safe to discontinue abruptly.

Clinical Notes

Most effective in populations with cognitive impairment or brain injury.
May improve attention and reduce impulsivity in ADHD and substance use disorders.
Often used as part of neurorehabilitation protocols.

This treatment information is for educational purposes only. Treatment decisions should be made in consultation with qualified healthcare professionals based on individual circumstances, symptoms, and medical history. Do not attempt treatment without professional guidance.

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