Phosphatidylcholine + Memantine
Memantine brand name: Ebixa.
We found no known interaction between Phosphatidylcholine and Memantine in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.
Phosphatidylcholine and Memantine
We checked these two against our interaction database. Here is what we found.
No Known Interaction Found
We did not find a documented interaction between Memantine and Phosphatidylcholine in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.
Worth understanding: our licensed dataset holds no drug-interaction record for Phosphatidylcholine at all — not against Memantine, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Phosphatidylcholine safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
What Memantine Is Prescribed For, and What Phosphatidylcholine Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Memantine is a prescription medicine with approved uses on its FDA label. Phosphatidylcholine is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Memantine is prescribed for: Memantine treats moderate to severe dementia of the Alzheimer's type. It is available as tablets, extended-release capsules, and an oral solution — all approved for this same use. It does not cure Alzheimer's disease and is not shown to prevent or slow the underlying loss of brain cells. It is used to help manage symptoms of moderate to severe disease.
Phosphatidylcholine has been studied for:
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Memory studied, not established Phosphatidylcholine has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Phosphatidylcholine for memory
It is unclear if oral phosphatidylcholine is beneficial for memory.
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Dementia studied, not established Phosphatidylcholine has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Phosphatidylcholine for dementia
It is unclear if oral phosphatidylcholine is beneficial in patients with dementia.
Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Memantine on your own; if you are taking Phosphatidylcholine for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
Questions About Phosphatidylcholine or Memantine
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Phosphatidylcholine or Memantine, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Memantine
This page covers Phosphatidylcholine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Memantine page lists 18 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Threonine (major), Coffee Charcoal (moderate), European Mandrake (moderate) and Glucomannan (moderate).
By severity: 2 major · 7 moderate · 9 minor.
Taking Phosphatidylcholine as Part of a Dietary Supplement Product? Check It for Interactions
We hold 1,521 real supplement products containing Phosphatidylcholine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Phosphatidylcholine. Even though Phosphatidylcholine itself has no known interaction with Memantine, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Phosphatidylcholine and Memantine Sit Against Everything Else
Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.
#209 of 1,452 supplements looked up here in the last 7 days
#1,041 of 2,830 medications looked up here in the last 7 days
Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.
Where does our data come from?
- Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Phosphatidylcholine reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Phosphatidylcholine and Memantine records this page draws on were last updated July 11, 2026.
- What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
About Phosphatidylcholine
What is Phosphatidylcholine?
- Liver health
- Memory and brain support
- Ulcerative colitis
- Source of choline
- High cholesterol
Phosphatidylcholine is a phospholipid that is part of every cell membrane and a source of choline. People take it for liver, brain, and gut health, but solid human evidence is limited for most uses. It is generally well tolerated, but talk to your pharmacist or doctor before starting it.
Phospholipid derived from sources such as soybeans, sunflower, and egg yolk · Capsules, softgels, tablets, granules, liquid, and powder (sometimes as part of lecithin)
An interaction check asks whether these two react with each other — it does not ask whether Phosphatidylcholine is a good idea for someone in your situation. Here is what our Phosphatidylcholine record says about it on its own.
Phosphatidylcholine: dosing
There is no single official or standardized dose of phosphatidylcholine for supplement use. The amount in products varies widely depending on the source and form, and the studied amounts differ from one condition to another.The best approach is to follow the dosing directions on your specific product's label. Higher doses are more likely to cause stomach upset and other side effects.
From our Phosphatidylcholine monograph — the full record covers uses, side effects and every documented interaction.
About Memantine
What Is Memantine Used For?
Brand name: Ebixa
Memantine treats moderate to severe dementia of the Alzheimer's type. It is available as tablets, extended-release capsules, and an oral solution — all approved for this same use.
It does not cure Alzheimer's disease and is not shown to prevent or slow the underlying loss of brain cells. It is used to help manage symptoms of moderate to severe disease.
Other Drugs & Phosphatidylcholine
Browse every other medication we’ve checked against Phosphatidylcholine — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Phosphatidylcholine against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Aspirin ›
- Ivermectin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Escitalopram ›
- Acetaminophen ›
- Tadalafil ›
- Clopidogrel ›
- Atorvastatin ›
- Valacyclovir ›
- Docusate ›
- Hydroxyurea ›
- Abemaciclib ›
- Methamphetamine ›
- Ibuprofen ›
- Sumatriptan ›
- Semaglutide ›
- Tirzepatide ›
- Warfarin Sodium ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Bupropion ›
- Metformin ›
- Acyclovir ›
- Amoxicillin ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Doxycycline ›
- Methotrexate ›
- Lamotrigine ›
- Fluoxetine ›
- Amphetamine ›
- Pregabalin ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Azithromycin ›
- Dextroamphetamine ›
- Isotretinoin ›
- Clonazepam ›
- Omeprazole ›
- Quetiapine ›
- Methylene Blue ›
- Amlodipine Besylate ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
- Naproxen ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Phosphatidylcholine list.
Phosphatidylcholine References
The 15 references that drive our Phosphatidylcholine monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- Domino EF, May WW, Demetriou S, et al. Lack of clinically significant improvement of patients with tardive dyskinesia following phosphatidylcholine therapy. Biol Psychiatry 1985;20:1189-96. PubMed
- Aronson PJ, Lorincz AL. Promotion of palmar sweating with oral phosphatidylcholine. Acta Derm Venereol 1985;65:19-24. DOI
- Hexsel DM, Serra M, de Oliveira Dal'Forno T, et al. Cosmetic uses of injectable phosphatidylcholine on the face. Otolaryngol Clin North Am 2005;38:1119-29. PubMed
- Kopera D, Binder B, Toplak H, et al. Histopathologic changes after intralesional application of phosphatidylcholine for lipoma reduction: report of a case. Am J Dermatopathol 2006;28:331-3. PubMed
- Rittes PG. The use of phosphatidylcholine for correction of lower lid bulging due to prominent fat pads. Dermatol Surg 2001;27:391-2. PubMed
- Rotunda AM, Kolodney MS. Mesotherapy and phosphatidylcholine injections: historical clarification and review. Dermatol Surg 2006;32:465-80. PubMed
- Hexsel D, Serra M, Mazzuco R, et al. Phosphatidylcholine in the treatment of localized fat. J Drugs Dermatol 2003;2:511-8.
- Hasengschwandtner F. Phosphatidylcholine treatment to induce lipolysis. Cosmet Dermatol 2005;4:308-13. PubMed
- Rittes PG. The use of phosphatidylcholine for correction of localized fat deposits. Aesthetic Plast Surg 2003;27:315-8. PubMed
- Ablon G, Rotunda AM. Treatment of lower eyelid fat pads using phosphatidylcholine: clinical trial and review. Dermatol Surg 2004;30:422-7. PubMed
- Loguercio C, Andreone P, Brisc C, et al. Silybin combined with phosphatidylcholine and vitamin E in patients with nonalcoholic fatty liver disease: a randomized controlled trial. Free Radic Biol Med 2012;52(9):1658-65. PubMed
- Panos, J. M., Palson, R., Johnson, R., Portmann, B., and Williams, R. Polyunsaturated phosphatidylcholine for acute alcoholic hepatitis: a double blind randomized placebo controlled trial. Eur.J.Gastroenterol 1990;2:351-355.
- Stremmel W, Braun A, Hanemann A, Ehehalt R, Autschbach F, Karner M. Delayed release phosphatidylcholine in chronic-active ulcerative colitis: a randomized, double-blinded, dose finding study. J Clin Gastroenterol 2010;44(5):e101-7. PubMed
- Stremmel W, Ehehalt R, Autschbach F, Karner M. Phosphatidylcholine for steroid-refractory chronic ulcerative colitis: a randomized trial. Ann Intern Med. 2007;147(9):603-10. PubMed
- Stremmel W, Vural H, Evliyaoglu O, Weiskirchen R. Delayed Release Phosphatidylcholine is Effective for Treatment of Ulcerative Colitis: A Meta-Analysis. Dig Dis 2021;39(5):508-515. PubMed
Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Taking Phosphatidylcholine and Memantine Together: Common Questions
Is it safe to take Phosphatidylcholine with Memantine?
Do Phosphatidylcholine and Memantine have any of the same side effects?
Are Phosphatidylcholine and Memantine used for the same thing?
Does Memantine interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.