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Dietary supplement

Alpha-GPC 300 mg Ingredients & Drug Interactions

by Double Wood Supplements

Alpha-GPC 300 mg label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Minor
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Alpha-GPC 300 mg 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: Minor

Alpha-GPC 300 mg is a dietary supplement by Double Wood Supplements with 1 active ingredient. Its ingredients are commonly taken for memory and learning support, age-related cognitive decline, alzheimer's disease and dementia (under study).Based on those ingredients, 16 medications have a known interaction with it, the most serious rated minor. The ingredients most likely to interact are Alpha GPC. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Alpha-GPC 300 mg by Double Wood Supplements

Ask about any prescription or over-the-counter medication and we check it for interactions with Alpha-GPC 300 mg by Double Wood Supplements — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Alpha-GPC 300 mg by Double Wood Supplements

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 Jul 16, 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.

Alpha-GPC 300 mg is a single-ingredient supplement — each capsule contains one active ingredient, alpha-GPC (also called L-alpha-glycerylphosphorylcholine), a compound your brain naturally produces. The capsules also contain gelatin, cellulose, and silicon dioxide as inactive ingredients to form and fill the capsule.

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 function support.
  • We looked for evidence on: Cognitive function, Alzheimer disease, Vascular dementia, Age-related cognitive decline, Memory.
  • The strongest evidence on file: Alpha-gpc is rated "Possibly Effective" for Alzheimer disease (Natural Medicines).
  • Also on file: Alpha-gpc is rated "Insufficient Reliable Evidence To Rate" for Cognitive function, Vascular dementia.

The evidence for alpha-GPC is mixed. It's rated possibly effective for Alzheimer disease based on available studies.

For brain tumors, cognitive function, vascular dementia, and stroke, the evidence we hold isn't strong or complete enough to rate it one way or the other. If you're thinking about using it for any of those conditions, talk it over with your doctor about what the current research shows for your situation.

The evidence, ingredient by ingredient Alpha-gpc

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.

Orally, alpha-GPC is generally well tolerated in the studies we have, though long-term safety hasn't been fully established. A small number of people in trials reported dizziness, headache, insomnia, or gastrointestinal upset like nausea or heartburn.

Rarely, stroke has been reported — and use for at least 2 months has been linked with a higher stroke risk compared with not using it or using it for less time. The safety data on alpha-GPC in pregnancy and lactation isn't on file here, so talk with your doctor or pharmacist before taking it if you're pregnant, planning to become pregnant, or breastfeeding.

Side effects, ingredient by ingredient Alpha-gpc

Meds to double-check

Minor interactions only
Known Interaction Concern · database check
Minor only

Only Minor-severity interactions are documented for these ingredients.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Alpha-gpc.
  • The most serious interaction on file is rated Minor.
  • For scale: 16 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 you take this product, double-check with your doctor or pharmacist if you use a scopolamine patch (Transderm Scop) for motion sickness — alpha-GPC may weaken its effects. No other medication interactions are documented for the ingredients we could check.

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. Only minor medication interactions are documented, and safety information is well characterized.

Alpha-GPC may be worth considering if you're interested in Alzheimer disease support, though the evidence for other brain health claims is still unclear. Because of a documented minor interaction with scopolamine patches and a possible stroke signal in longer-term use, check your exact medications with your doctor or pharmacist before starting — especially if you're over 50 or have any history of stroke or cardiovascular concerns.

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 Jun 22, 2023.

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 Alpha-GPC 300 mg, straight from the product label.

Brand Double Wood Supplements
Barcode (UPC) X000S3VNDX
Net contents 60 Capsule(s)
Market status On market
Date entered into DSLD Jun 22, 2023
DSLD ID 286144
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating), Gluten 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 Alpha-GPC 300 mg by Double Wood Supplements, 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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
30
UPC/BARCODE
X000S3VNDX
IngredientAmount% DV
Alpha GPC600 mg--

Other ingredients: Gelatin, Cellulose, Silicon Dioxide

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

Product Information: Alpha-GPC contains elemental choline and may help support choline levels. Choline itself is a precursor to the neurotransmitter acetylcholine, which plays an important role in memory and other cognitive processes. By supporting choline levels, Alpha GPC can help support overall cognitive function.

Suggested/Recommended/Usage/Directions

Suggested Use: Take 2 capsules with food as needed.

Storage

Storage: Store in a cool, dark place. Do not freeze or expose to moisture or heat above room temperature.

Precautions

Keep out of reach of children.

Do not use if safety seal is broken or damaged.

Warning: Consult your physician before using this product. Do not consume more than 8 capsules per day.

Do not take this product if you are pregnant, nursing, or taking any other medications.

Discontinue use and consult your doctor immediately if any adverse reactions occur. Do not take Alpha-GPC and operate any heavy machinery until you know how it affects you.

Seals/Symbols

Proudly Made in USA

Formulation

Made with Non-GMO ingredients Gluten free

Supports cognitive acuity Building block for acetylcholine Supports strength training

FDA Statement of Identity

Dietary Supplement

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.

General Statements

New

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

See for yourself

Alpha-GPC 300 mg by Double Wood Supplements label

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

Alpha-GPC 300 mg 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 Alpha-GPC 300 mg by Double Wood Supplements

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

Serving size2 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Alpha GPC

Interacts with
16 drugs
600 mg per serving

Alpha-GPC is a choline-containing compound used mainly for memory, brain health, and as a choline source. There is some evidence it may help cognition...

Alpha GPC monograph & interactions

Other (inactive) ingredients: Gelatin, Cellulose, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

Alpha-GPC 300 mg by Double Wood Supplements Drug Interactions

Want to check YOUR meds against Alpha-GPC 300 mg?

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
16Drugs
16 Minor

Ingredients driving the most interactions

Alpha GPC 16

Individual Drug Interactions

The ingredients in Alpha-GPC 300 mg interact with 16 drugs. Click any drug to see the details.

1 of the 1 ingredient in Alpha-GPC 300 mg interact with drugs. Each result below shows which ingredient is responsible. Alpha GPC

Each ingredient & the kinds of drugs it affects

For each ingredient in Alpha-GPC 300 mg 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.

Alpha GPC1 drug type · 16 drugs

Scopolamine (Transderm Scop)

Theoretically, alpha-GPC might decrease the effects of scopolamine.
A small clinical study shows that alpha-GPC can partially counteract the attention and memory impairment effects caused by scopolamine given intramuscularly. Whether alpha-GPC can decrease the beneficial anti-motion sickness effects of the scopolamine patch (Transderm Scop) is unclear.

Likelihood Possible Evidence B
Alpha GPC full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Alpha-GPC 300 mg, from the product label.

Double Wood Supplements

See all Double Wood Supplements products
Name
Double Wood LLC
Street Address
3510 Scotts Ln Ste 219
City
Philadelphia
State
PA
ZipCode
19129-1573
Web Address
www.doublewoodsupplements.com
Pharmacist Counseling Corner

Alpha-GPC 300 mg by Double Wood Supplements: Common Questions

Does Alpha-GPC 300 mg by Double Wood Supplements interact with any medications?
Yes. Based on its ingredients, Alpha-GPC 300 mg has a known interaction with 16 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Alpha-GPC 300 mg 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.
Does alpha-GPC actually improve memory or brain function?
The evidence is incomplete. We have some support for possibly effective use in Alzheimer disease, but for general cognitive function and other brain conditions, the research we hold isn't strong or clear enough to say either way. Talk with your doctor about whether it fits your specific goals.
Is alpha-GPC safe to use long-term?
The studies show it's generally well tolerated when taken by mouth, but long-term safety hasn't been fully established. There's also been a signal of higher stroke risk in people who used it for at least 2 months compared with those who didn't — something worth discussing with your doctor if you're considering ongoing use.
Can I take this if I'm pregnant or breastfeeding?
The safety data for alpha-GPC in pregnancy and lactation isn't on file in our database. Talk with your doctor or pharmacist for personalized advice before taking it.
Are there side effects I should watch for?
Most people tolerate it well, but a small number in trials reported dizziness, headache, insomnia, or mild stomach upset like nausea or heartburn. Stop and contact your doctor if you notice anything concerning.
What are the inactive ingredients in this capsule?
Gelatin, cellulose, and silicon dioxide — all standard capsule components that don't add active effect.

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

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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.

Alpha-GPC 300 mg label
Go deeper

The Full Monographs Behind Alpha-GPC 300 mg’s Ingredients

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

Herb & supplement monograph

Alpha-gpc

Interacts with 16 drugs

Alpha-GPC is a choline-containing compound used mainly for memory, brain health, and as a choline source. There is some evidence it may help cognition in people with dementia, but evidence i...

Read the full Alpha-gpc monograph →
Sources

Sources & How We Checked

Alpha-GPC 300 mg'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 4 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.

Alpha-gpc 4 references
  1. Di Perri R, Coppola G, Ambrosio LA, et al. A multicentre trial to the evaluate the efficacy and tolerability of alpha-glycerylphosphorylcholine versus cytosine diphosphocholine in patients with vascular dementia. J Int Med Res 1991;19:330-41.
  2. Barbagallo Sangiorgi G, Barbagallo M, Giordano M, et al. Alpha-glycerophosphocholine in the mental recovery of cerebral ischemic attacks: An Italian multicenter clinical trial. Ann N Y Acad Sci 1994;717:253-69. PubMed
  3. Canal N, Franceschi M, Alberoni M, et al. Effect of L-alpha-glyceryl-phosphorylcholine on amnesia caused by scopolamine. Int J Clin Pharmacol Ther Toxicol 1991;29:103-7.
  4. Lee G, Choi S, Chang J, et al. Association of L-a glycerylphosphorylcholine with subsequent stroke risk after 10 Years. JAMA Netw Open 2021;4(11):e2136008.

See these in context on the Alpha-gpc 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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