Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

Phosphatidyl Serine Ingredients & Drug Interactions

by Natural BioScience

Phosphatidyl Serine label
See full label image
Softgel Capsule Category: Fat/fatty Acid
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Phosphatidyl Serine against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Phosphatidyl Serine is a dietary supplement by Natural BioScience with 1 active ingredient. Its ingredients are commonly taken for memory and cognitive support, age-related cognitive decline, attention and focus (adhd).Based on those ingredients, 219 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Phosphatidylserine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Phosphatidyl Serine by Natural BioScience

Ask about any prescription or over-the-counter medication and we check it for interactions with Phosphatidyl Serine by Natural BioScience — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Phosphatidyl Serine by Natural BioScience

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Sep 3, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: phosphatidylserine, a naturally occurring compound found in cell membranes. The softgel capsule is an inactive ingredient used to deliver the phosphatidylserine.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Supports cognitive health.
  • We looked for evidence on: Age-related cognitive decline, Alzheimer disease, Attention deficit-hyperactivity disorder (ADHD), Cognitive function, Dementia, Memory — and 2 related terms.
  • The strongest evidence on file: Phosphatidylserine is rated "Possibly Effective" for Age-related cognitive decline (Natural Medicines).
  • Also on file: Phosphatidylserine is rated "Possibly Effective" for Alzheimer disease.
  • Also on file: Phosphatidylserine is rated "Insufficient Reliable Evidence To Rate" for Attention deficit-hyperactivity disorder (ADHD), Cognitive function, Dementia.

Phosphatidylserine is possibly effective for age-related cognitive decline and Alzheimer disease, based on the evidence we hold. For athletic performance, attention deficit-hyperactivity disorder (ADHD), general cognitive function, and dementia, the evidence isn't established well enough to rate it one way or the other.

The evidence, ingredient by ingredient Phosphatidylserine

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Phosphatidylserine is generally well tolerated in studies, though long-term safety hasn't been fully established. The most common side effects are flatulence, gastrointestinal upset, headache, insomnia, and nausea.

Higher doses—particularly around 600 mg—are more likely to cause insomnia, and doses of 200–300 mg per day may trigger stomach upset or nausea. There isn't enough safety data to recommend phosphatidylserine during pregnancy or while breastfeeding.

Talk with your doctor or pharmacist about whether it's right for your situation.

Side effects, ingredient by ingredient Phosphatidylserine

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Phosphatidylserine.
  • The most serious interaction on file is rated Moderate.
  • For scale: 219 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check before starting if you take anticholinergic drugs (like antihistamines, certain motion sickness or Parkinson's medications, or urinary antispasmodics) or cholinergic drugs (like some dementia or myasthenia gravis treatments). Phosphatidylserine might theoretically reduce the effectiveness of anticholinergic drugs or add to the effects of cholinergic ones.

Your doctor or pharmacist can review your specific medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Phosphatidyl Serine by Natural BioScience may be worth considering if you're looking into support for age-related cognitive changes or Alzheimer disease. If you take anticholinergic or cholinergic medications, check your exact prescriptions with your doctor or pharmacist before you start, since it could theoretically affect how they work.

Start with a lower dose to watch for stomach upset or sleep issues, and discuss this supplement with your own healthcare provider.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Oct 22, 2021.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Phosphatidyl Serine, straight from the product label.

Brand Natural BioScience
Barcode (UPC) X000RHZZNT
Net contents 90 Softgel(s)
Market status On market
Date entered into DSLD Oct 22, 2021
DSLD ID 260783
Product type Fat/fatty Acid
Supplement form Softgel Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Sugar Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Phosphatidyl Serine by Natural BioScience, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Softgel(s)
Maximum serving Sizes:
1 Softgel(s)
Servings per container
90
UPC/BARCODE
X000RHZZNT
IngredientAmount% DV
Phosphatidylserine100 mg--

Other ingredients: Softgel

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions

Suggested Use One (1) softgel, 1-3 times daily or as directed by a healthcare professional.

Precautions

If pregnant, nursing, taking any medications, consult a healthcare professional before use.

Keep out of reach of children.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Formulation

Soy free product Gluten free product Non GMO product

Supports cognitive health Professional formula

Does Not Contain Artificial colors, artificial flavors, sweeteners, preservatives, gluten, soy, sugar, yeast.

General Statements

Each batch is tested Questions? Call toll free 1-800-462-5197

Formula

Soy-Free Sharp-PS

From sunflower lecithin

Sharp PS Green

FDA Statement of Identity

Dietary Supplement

Brand IP Statement(s)

Sharp-PS is a registered trademark of Enzymotec Ltd. Manufactured and protected under U.S. Patent #8,324,187.

Storage

Store in a cool, dry place after opening.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Phosphatidyl Serine by Natural BioScience label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Phosphatidyl Serine label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Phosphatidyl Serine by Natural BioScience

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Softgel(s) Dosage formSoftgel Capsule Servings per container90 Amounts shown are per serving.

Phosphatidylserine

Interacts with
219 drugs
100 mg per serving Form: Sunflower Lecithin

Phosphatidylserine is a natural fat-like compound found in cell membranes, especially in the brain, and it is sold mainly to support memory and thinki...

Phosphatidylserine monograph & interactions

Other (inactive) ingredients: Softgel. These complete the product’s ingredient list but are not active constituents.

Interaction report

Phosphatidyl Serine by Natural BioScience Drug Interactions

Want to check YOUR meds against Phosphatidyl Serine?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
219Drugs
219 Moderate

Ingredients driving the most interactions

Phosphatidylserine 219

Individual Drug Interactions

The ingredients in Phosphatidyl Serine interact with 219 drugs. Click any drug to see the details.

1 of the 1 ingredient in Phosphatidyl Serine interact with drugs. Each result below shows which ingredient is responsible. Phosphatidylserine

Each ingredient & the kinds of drugs it affects

For each ingredient in Phosphatidyl Serine with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Phosphatidylserine2 drug types · 219 drugs

Anticholinergic Drugs

Theoretically, phosphatidylserine might decrease the effectiveness anticholinergic drugs.
Phosphatidylserine is thought to increase acetylcholine levels, which could theoretically interfere with the activity of anticholinergic agents.

Likelihood Possible Evidence B
Cholinergic Drugs

Theoretically, phosphatidylserine might have additive effects with cholinergic drugs.
Phosphatidylserine is thought to increase acetylcholine levels, which could theoretically lead to additive cholinergic effects when used with cholinergic drugs.

Likelihood Possible Evidence B
Phosphatidylserine full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Phosphatidyl Serine, from the product label.

Natural BioScience

See all Natural BioScience products
Name
Nugema Research, Inc.
City
Houston
State
TX
ZipCode
77043
Phone Number
1-800-462-5197
Web Address
naturalbioscience.org
Pharmacist Counseling Corner

Phosphatidyl Serine by Natural BioScience: Common Questions

Does Phosphatidyl Serine by Natural BioScience interact with any medications?
Yes. Based on its ingredients, Phosphatidyl Serine has a known interaction with 219 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Phosphatidyl Serine contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What does phosphatidylserine do?
Phosphatidylserine is a natural compound found in cell membranes. It's thought to support cognitive function, and there's evidence it may be helpful for age-related cognitive decline and Alzheimer disease. For other uses like athletic performance or ADHD, the evidence isn't strong enough to be certain yet.
What are the most common side effects?
The most common side effects are flatulence, gastrointestinal upset, headache, insomnia, and nausea. Higher doses (around 600 mg) are more likely to cause insomnia, and lower doses (200–300 mg per day) may cause stomach upset or nausea. Start with a lower dose to see how you tolerate it.
Is it safe to take during pregnancy or breastfeeding?
There isn't enough safety data to know either way during pregnancy or breastfeeding. It's best to avoid it during these times unless your doctor advises otherwise. Talk with your doctor or pharmacist about your specific situation.
How long does it take to work?
The facts we hold don't specify how quickly you might notice effects. If you're considering this for cognitive support, talk with your doctor or pharmacist about realistic timelines and how to know if it's working for you.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Phosphatidyl Serine is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Phosphatidyl Serine label
Go deeper

The Full Monographs Behind Phosphatidyl Serine’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Phosphatidylserine

Interacts with 219 drugs

Phosphatidylserine is a natural fat-like compound found in cell membranes, especially in the brain, and it is sold mainly to support memory and thinking. Some research suggests possible bene...

Read the full Phosphatidylserine monograph →
Sources

Sources & How We Checked

Phosphatidyl Serine's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 9 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Phosphatidylserine 9 references
  1. Crook T, Petrie W, Wells C, Massari DC. Effects of phosphatidylserine in Alzheimer's disease. Psychopharmacol Bull 1992;28:61-6.
  2. Pepping J. Phosphatidylserine. Am J Health-Syst Pharm 1999;56:2038,2043-4.
  3. Kidd PM. Phosphatidylserine; Membrane nutrient for memory. A clinical and mechanistic assessment. Altern Med Rev 1996;1:70-84.
  4. Kim HY, Akbar M, Lau A, et al. Inhibition of neuronal apoptosis by docosahexaenoic acid (22:6n-3). Role of phosphatidylserine in antiapoptotic effect. J Biol Chem 2000;275:35215-23.. PubMed
  5. Zanotti A, Valzelli L, Toffano G. Chronic phosphatidylserine treatment improves spatial memory and passive avoidance in aged rats. Psychopharmacology (Berl) 1989;99:316-21.. PubMed
  6. Schreiber S, Kampf-Sherf O, Gorfine M, et al. An open trial of plant-source derived phosphatydilserine for treatment of age-related cognitive decline. Isr J Psychiatry Relat Sci 2000;37:302-7.
  7. Pepping, J. Phosphatidylserine. Am J Health Syst.Pharm. 10-15-1999;56(20):2038, 2043-2038, 2044.
  8. Monteverde, A., Gnemmi, P., Rossi, F., Monteverde, A., and Finali, G. C. Selegiline in the treatment of mild to moderate Alzheimer-type dementia. Clin.Ther 1990;12(4):315-322.
  9. Vakhapova V, Cohen T, Richter Y, Herzog Y, Kam Y, Korczyn AD. Phosphatidylserine containing omega-3 Fatty acids may improve memory abilities in nondemented elderly individuals with memory complaints: results from an open-label extension study. Dement Geri PubMed

See these in context on the Phosphatidylserine monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team