Table of ContentsView AllTable of ContentsWhat Is Citicoline?UsesFood SourcesDosageSafetySimilar SupplementsFrequently Asked Questions
Table of ContentsView All
View All
Table of Contents
What Is Citicoline?
Uses
Food Sources
Dosage
Safety
Similar Supplements
Frequently Asked Questions
Citicoline, also known ascytidine-5’-diphosphocholineorCDP-choline, is a fat molecule that is an important part of the cell membrane.
Researchers have studied citicoline in the setting of neurological (brain and nerve) diseases, such as dementia. It is commonly used to enhance cognitive function.
This article discusses citicoline’s potential benefits and safety.
Citicoline Supplement Facts
Citicoline has been studied to treat the following conditions:
Citicoline has improvedcognitionin people with neurological conditions. And it has also improved memory and cognitive function in healthy people.
Older adult solving a crossword puzzle.Goodboy Picture Company / Getty Images

Goodboy Picture Company / Getty Images
Age-Related Cognitive Decline
Citicoline supplementation improved memory in older adults with age-associated memory impairment compared to a placebo (no treatment) group. However, the study is not generalizable to young adults or people with cognitive diseases likedementiaandAlzheimer’s disease(AD).
A review of a collection of studies showed a positive effect of citicoline on cognitive function in people with mild vascular cognitive impairment,vascular dementia, or AD.Because citicoline was used with the standard treatment (acetylcholinesterase inhibitor) for AD, the effect of citicoline alone on AD is unclear.
Cognitive Enhancement
In a study, a citicoline-caffeine-based drink improved attention, mental alertness, and memory.Since citicoline was combined with caffeine, it is unclear what the effect of citicoline alone is on attention and memory.
Based on a study in young, healthy males, citicoline improved motor function and attention after four weeks of supplementation.However, study results might not apply to populations other than young, healthy males.
Eye Surgery Recovery
Using citicoline eye drops three times a day for one month after eye surgery aided the recovery of corneal sensitivity afterLASIK (laser-assisted in situ keratomileusis).
Stroke Treatment
A systematic review of studies found citicoline alone benefited acuteischemic stroke(blood clots in the brain). However, citicoline offers limited benefits on top of standard stroke treatment withrtPA or recombinant tissue plasminogen activator(clot-busting drug).
Furthermore, one study in people with a first ischemic stroke showed that after the stroke, people who received citicoline over two years had reduced cognitive impairment.
Neuroprotection
Citicoline has been studied for the following neuroprotective (protecting the nerves and brain) effects:
While citicoline may benefit various cognitive conditions, further research is needed to confirm these results.
Foods rich in choline include the following:
The usual therapeutic dose for humans used in clinical trials is 500 to 2,000 mg daily.
Listed below are the citicoline dosing for various conditions used in clinical trials.
Overall, citicoline is well-tolerated and has no adverse systemic cholinergic side effects (e.g., increased saliva and tear production, urination and defecation, and decreased heart rate).
Avoid citicoline if you’re allergic to it or its components (parts). Seek immediate medical attention if you have asevere allergic reaction(itching, hives, shortness of breath).
Side Effects
Although no serious side effects were noted in some studies, mild side effects include the following:
Common side effects include the following:
Interactions
Moreover, citicoline with levodopa allowed for a lower dose of levodopa in studies.
Precautions
Many clinical trials exclude people who are pregnant or breastfeeding. Therefore, the safety of citicoline in people who are pregnant or breastfeeding is unknown.
Although citicoline is well-tolerated, it is essential not to take more than instructed.
Please consult with your healthcare provider before starting citicoline.
Dietary supplements are not regulated like prescription medications in the United States. Therefore, some may be safer than others. Whenchoosing a supplement, consider factors such as independent testing, potential drug interactions, and other safety concerns. Talk to a healthcare provider or a registered dietitian nutritionist (RD or RDN) about supplement quality and safety.
Other supplements that have cognitive-enhancing properties include the following:
Summary
Not only does citicoline protect the brain, but it also has an excellent safety profile.
Several clinical studies indicate citicoline’s therapeutic potential in various neurological conditions, including age-related cognitive decline and stroke treatment and recovery.
Once citicoline is ingested, it is broken down into two molecules: cytidine and choline.After these two molecules cross the blood-brain barrier separately and reach the brain cells, they combine to form CDP-choline (citicoline) again.Citicoline serves as a source for making phosphatidylcholine, one of the parts of cell membranes.Choline, one of the breakdown products of citicoline, serves as one of the building blocks for the production of acetylcholine, a neurotransmitter (chemical messenger) involved in memory and muscle movement.
Once citicoline is ingested, it is broken down into two molecules: cytidine and choline.
After these two molecules cross the blood-brain barrier separately and reach the brain cells, they combine to form CDP-choline (citicoline) again.
Citicoline serves as a source for making phosphatidylcholine, one of the parts of cell membranes.
Choline, one of the breakdown products of citicoline, serves as one of the building blocks for the production of acetylcholine, a neurotransmitter (chemical messenger) involved in memory and muscle movement.
30 Sources
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Jasielski P, Piędel F, Piwek M, et al.Application of citicoline in neurological disorders: A systematic review.Nutrients. 2020;12(10):3113. doi:10.3390/nu12103113
Brown ES, Todd JP, Hu LT, et al.A randomized, double-blind, placebo-controlled trial of citicoline for cocaine dependence in bipolar I disorder.Am J Psychiatry. 2015;172(10):1014-1021. doi:10.1176/appi.ajp.2015.14070857
Iulia C, Ruxandra T, Costin LB, Liliana-Mary V.Citicoline - a neuroprotector with proven effects on glaucomatous disease.Rom J Ophthalmol. 2017;61(3):152-158. doi:10.22336/rjo.2017.29
Roohi-Azizi M, Arabzadeh S, Amidfar M, et al.Citicoline combination therapy for major depressive disorder: A randomized, double-blind, placebo-controlled trial.Clin Neuropharmacol. 2017;40(1):1-5. doi:10.1097/WNF.0000000000000185
Nakazaki E, Mah E, Sanoshy K, et al.Citicoline and memory function in healthy older adults: A randomized, double-blind, placebo-controlled clinical trial.J Nutr. 2021;151(8):2153-2160. doi:10.1093/jn/nxab119
Bonvicini M, Travaglini S, Lelli D, et al.Is citicoline effective in preventing and slowing down dementia?-A systematic review and a meta-analysis.Nutrients. 2023;15(2):386. doi:10.3390/nu15020386
Bruce SE, Werner KB, Preston BF, et al.Improvements in concentration, working memory and sustained attention following consumption of a natural citicoline-caffeine beverage.Int J Food Sci Nutr. 2014;65(8):1003-1007. doi:10.3109/09637486.2014.940286
McGlade E, Agoston AM, DiMuzio J, et al.The effect of citicoline supplementation on motor speed and attention in adolescent males.J Atten Disord. 2019;23(2):121-134. doi:10.1177/1087054715593633
Cinar E, Yuce B, Aslan F, Erbakan G.Neuroprotective effect of citicoline eye drops on corneal sensitivity after LASIK.J Refract Surg. 2019;35(12):764-770. doi:10.3928/1081597X-20191021-01
Secades JJ, Alvarez-Sabín J, Castillo J, et al.Citicoline for acute ischemic stroke: a systematic review and formal meta-analysis of randomized, double-blind, and placebo-controlled trials.J Stroke Cerebrovasc Dis. 2016;25(8):1984-1996. doi:10.1016/j.jstrokecerebrovasdis.2016.04.010
Alvarez-Sabín J., Santamarina E., Maisterra O., et al.Long-term treatment with citicoline prevents cognitive decline and predicts a better quality of life after a first ischemic stroke.Int. J. Mol. Sci. 2016;17:390. doi: 10.3390/ijms17030390.
Que DS, Jamora RDG.Citicoline as adjuvant therapy in Parkinson’s disease: A systematic review.Clin Ther. 2021;43(1):e19-e31. doi:10.1016/j.clinthera.2020.11.009
Ghajar A, Gholamian F, Tabatabei-Motlagh M, et al.Citicoline (CDP-choline) add-on therapy to risperidone for treatment of negative symptoms in patients with stable schizophrenia: A double-blind, randomized placebo-controlled trial.Hum Psychopharmacol. 2018;33(4):e2662. doi:10.1002/hup.2662
Brown ES, Van Enkevort E, Kulikova A, et al.A randomized, double-blind, placebo-controlled trial of citicoline in patients with alcohol use disorder.Alcohol Clin Exp Res.2019;43(2):317-323. doi:10.1111/acer.13928
Rossetti L, Goni F, Montesano G, et al.The effect of citicoline oral solution on quality of life in patients with glaucoma: the results of an international, multicenter, randomized, placebo-controlled cross-over trial.Graefes Arch Clin Exp Ophthalmol. 2023;261(6):1659-1668. doi:10.1007/s00417-022-05947-5
Salamah A, El Amrousy D, Elsheikh M, et al.Citicoline in hypoxic ischemic encephalopathy in neonates: a randomized controlled trial.Ital J Pediatr. 2023;49(1):55. doi:10.1186/s13052-023-01452-5
Parisi V, Ziccardi L, Barbano L, et al.Citicoline and vitamin B12 eye drops in type 1 diabetes: results of a 36-month pilot study evaluating macular electrophysiological changes.Adv Ther. 2021;38(7):3924-3936. doi:10.1007/s12325-021-01771-1
Jeong H, Yoon S, Sung YH, et al.Effects of cytidine-5'-diphosphate choline on gray matter volumes in methamphetamine-dependent patients: A randomized, double-blind, placebo-controlled study.J Psychiatr Res. 2021;143:215-221. doi:10.1016/j.jpsychires.2021.09.006
Secades JJ, Trimmel H, Salazar B, et al.Citicoline for the management of patients with traumatic brain injury in the acute phase: A systematic review and meta-analysis.Life (Basel). 2023;13(2):369. doi:10.3390/life13020369
Synoradzki K, Grieb P.Citicoline: A superior form of choline?.Nutrients. 2019;11(7):1569. doi:10.3390/nu11071569
Young JF, Therkildsen M, Ekstrand B, et al.Novel aspects of health promoting compounds in meat.Meat Sci.2013;95(4):904-911. doi:10.1016/j.meatsci.2013.04.036
National Institutes of Health.Choline
Buglio DS, Marton LT, Laurindo LF, et al.The role of resveratrol in mild cognitive impairment and Alzheimer’s disease: a systematic review.J Med Food. 2022;25(8):797-806. doi:10.1089/jmf.2021.0084
Wang Z, Zhu W, Xing Y, Jia J, Tang Y.B vitamins and prevention of cognitive decline and incident dementia: a systematic review and meta-analysis.Nutr Rev. 2022;80(4):931-949. doi:10.1093/nutrit/nuab057
Xu Q, Zhang Y, Zhang X, et al.Medium-chain triglycerides improved cognition and lipid metabolomics in mild to moderate Alzheimer’s disease patients with APOE4-/-: A double-blind, randomized, placebo-controlled crossover trial.Clin Nutr. 2020;39(7):2092-2105. doi:10.1016/j.clnu.2019.10.017
Martí Del Moral A, Fortique F.Omega-3 fatty acids and cognitive decline: a systematic review. Omega-3 y deterioro cognitivo: una revisión sistemática.Nutr Hosp. 2019;36(4):939-949. doi:10.20960/nh.02496
Pereira ME, Souza JV, Galiciolli MEA, et al.Effects of selenium supplementation in patients with mild cognitive impairment or Alzheimer’s disease: a systematic review and meta-analysis.Nutrients. 2022;14(15):3205. doi:10.3390/nu14153205
Martí-Carvajal AJ, Valli C, Martí-Amarista CE, Solà I, Martí-Fàbregas J, Bonfill Cosp X.Citicoline for treating people with acute ischemic stroke.Cochrane Database Syst Rev. 2020;8(8):CD013066. Published 2020 Aug 29. doi:10.1002/14651858.CD013066.pub2
Salamah A, Mehrez M, Faheem A, El Amrousy D.Efficacy of citicoline as a neuroprotector in children with post cardiac arrest: a randomized controlled clinical trial.Eur J Pediatr. 2021;180(4):1249-1255. doi:10.1007/s00431-020-03871-6
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