Interactions on record — worth a quick check against your medications. Based on 1 of 3 ingredients. Check your meds →
Dietary supplement

PhosSerine Complex Ingredients & Drug Interactions

by Allergy Research Group

PhosSerine Complex label
See full label image
Capsule Category: Other Combinations
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 PhosSerine Complex 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

PhosSerine Complex is a dietary supplement by Allergy Research Group with 3 active ingredients. 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.

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Check Your Meds Against PhosSerine Complex by Allergy Research Group

Ask about any prescription or over-the-counter medication and we check it for interactions with PhosSerine Complex by Allergy Research Group — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of PhosSerine Complex by Allergy Research Group

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 3 of its 3 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

PhosSerine Complex contains 3 active ingredients: phosphatidylserine, phosphatidic acid, and other phospholipids. Phosphatidylserine is a naturally occurring phospholipid (a type of fat) found in cell membranes and is thought to support brain cell communication by increasing acetylcholine, a key brain chemical.

The product also includes inactive ingredients — hydroxypropyl methylcellulose, rice hull concentrate, gum arabic, and sunflower oil — which are fillers and binders that hold the capsule together.

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: memory and cognitive support.
  • We looked for evidence on: Age-related cognitive decline, Cognitive function, Attention deficit-hyperactivity disorder (ADHD), mental performance, focus, brain health.
  • The strongest evidence on file: Phosphatidylserine is rated "Possibly Effective" for Age-related cognitive decline (Natural Medicines).
  • Also on file: Phosphatidylserine is rated "Insufficient Reliable Evidence To Rate" for Attention deficit-hyperactivity disorder (ADHD), Cognitive function.

For phosphatidylserine, the evidence is mixed. It's considered possibly effective for age-related cognitive decline and Alzheimer disease — meaning some studies suggest benefit, but more research is needed to be certain.

For athletic performance, ADHD, general cognitive function, and dementia, the evidence we hold is insufficient to rate whether it works. The other two active ingredients in this product (phosphatidic acid and other phospholipids) don't have established effectiveness ratings in our data.

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 — gastrointestinal issues can show up at doses of 200–300 mg per day, and insomnia is more likely at higher doses (around 600 mg).

During pregnancy, there isn't enough safety information, so it's best to avoid it. The same goes for breastfeeding — safety data isn't available, so avoidance is recommended.

Talk with your doctor or pharmacist about whether this product is right for you if you're pregnant, planning to become pregnant, or breastfeeding.

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.

Before taking PhosSerine Complex, double-check with your doctor or pharmacist if you take anticholinergic drugs (like those for overactive bladder or certain poisonings) or cholinergic drugs (like those for myasthenia gravis or glaucoma) — phosphatidylserine may affect how these medications work.

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.

PhosSerine Complex may be worth considering if you're interested in supporting brain health for age-related cognitive changes or Alzheimer disease, though evidence is modest. If you take anticholinergic or cholinergic medications, check with your doctor or pharmacist before starting — this product could affect how those drugs work.

Anyone who's pregnant, breastfeeding, or taking other medications should talk it over with their own healthcare provider first.

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

Assessment coverage: 1 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 24, 2024.

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 PhosSerine Complex, straight from the product label.

Brand Allergy Research Group
Barcode (UPC) 713947725713
Net contents 90 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Jan 24, 2024
DSLD ID 304268
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses Nutrient, All Other
Intended target group(s) Adult (18 - 50 Years)
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 PhosSerine Complex by Allergy Research Group, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
90
UPC/BARCODE
713947725713
IngredientAmount% DV
Phosphatidylserine100 mg--
Phosphatidic Acid90 mg--
Other Phospholipids35 mg--

Other ingredients: Hydroxypropyl Methylcellulose, rice hull concentrate, Gum Arabic, Sunflower Oil

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.
Formula

Contains phosphatidylserine and phosphatidic acid, extracted from non-GMO sunflower lecithin with the aid of a cabbage enzyme.

Sunflower Lecithin Base

Formulation

Hypoallergenic

Suggested/Recommended/Usage/Directions

Suggested Use As a dietary supplement, 1 capsule three times daily with meals, or as directed by a healthcare practitioner.

Storage

Keep in a cool, dry place, tightly capped.

FDA Statement of Identity

Dietary Supplement

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

See for yourself

PhosSerine Complex by Allergy Research Group label

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

PhosSerine Complex 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 PhosSerine Complex by Allergy Research Group

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

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

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Phosphatidylserine

Interacts with
219 drugs
100 mg per serving Form: Sunflower

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

Phosphatidic Acid

90 mg per serving Form: Sunflower

Other Phospholipids

35 mg per serving Form: Sunflower

Other (inactive) ingredients: Hydroxypropyl Methylcellulose, Rice hull concentrate, Gum Arabic, Sunflower Oil. These complete the product’s ingredient list but are not active constituents.

Interaction report

PhosSerine Complex by Allergy Research Group Drug Interactions

Want to check YOUR meds against PhosSerine Complex?

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 PhosSerine Complex interact with 219 drugs. Click any drug to see the details.

1 of the 3 ingredients in PhosSerine Complex interact with drugs. Each result below shows which ingredient is responsible. Phosphatidylserine

Each ingredient & the kinds of drugs it affects

For each ingredient in PhosSerine Complex 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 PhosSerine Complex, from the product label.

Allergy Research Group

See all Allergy Research Group products
Name
Allergy Research Group
City
South Salt Lake
State
UT
ZipCode
84115
Phone Number
800.545.9960
Web Address
www.allergyresearchgroup.com
Pharmacist Counseling Corner

PhosSerine Complex by Allergy Research Group: Common Questions

Does PhosSerine Complex by Allergy Research Group interact with any medications?
Yes. Based on its ingredients, PhosSerine Complex 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?
PhosSerine Complex contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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.
Can I take this if I'm pregnant or breastfeeding?
No — there isn't enough safety information for phosphatidylserine during pregnancy, so it's best to avoid it. Safety while breastfeeding is also unknown, so avoidance is recommended. Talk with your doctor or pharmacist for personalized advice if you're planning to become pregnant or are currently breastfeeding.
What's phosphatidylserine, and why is it in here?
Phosphatidylserine is a type of fat (phospholipid) found naturally in cell membranes. It's thought to increase acetylcholine, a chemical in your brain that helps cells communicate. That's why it's included in supplements aimed at supporting brain function and memory.
Does this product really work for memory and thinking?
For age-related cognitive decline and Alzheimer disease, phosphatidylserine is considered possibly effective — meaning some studies show benefit, but we need more research to be sure. For ADHD, general thinking, and dementia, the evidence we have isn't strong enough to rate whether it works.
What side effects should I watch for?
The most common ones are flatulence, stomach upset, headache, trouble sleeping, and nausea. Stomach issues can happen at doses of 200–300 mg per day, and insomnia is more likely at higher doses around 600 mg. Most people tolerate it well overall.
How long can I safely take this?
Phosphatidylserine is generally well tolerated in studies, but we don't have enough data on long-term safety. If you're thinking of taking it regularly, talk with your doctor or pharmacist to discuss whether it's a good fit for you and for how long.

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

Not sure if PhosSerine Complex is safe with your meds?

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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.

PhosSerine Complex label
Go deeper

The Full Monographs Behind PhosSerine Complex’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

PhosSerine Complex'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

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