L-Aspartic Acid Ingredients & Drug Interactions
What is this page for?
First and foremost: checking L-Aspartic Acid 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
L-Aspartic Acid is a dietary supplement by Douglas Laboratories with 1 active ingredient. Its ingredients are commonly taken for testosterone support, athletic performance and muscle building, energy and endurance.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of L-Aspartic Acid by Douglas Laboratories
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.
What’s inside
Full disclosure
This product contains one active ingredient: L-aspartic acid, an amino acid your body uses to build and repair muscle tissue and support nervous system function. There are no inactive ingredients listed.
Does it work?
Couldn't assess
The evidence for L-aspartic acid is limited. Our data shows insufficient reliable evidence to rate it for athletic performance, muscle strength, fatigue, or opioid withdrawal.
That doesn't mean it doesn't work — it means the studies haven't been robust enough yet to say either way.
How safe is it?
Some data gaps
L-aspartic acid is likely fine in the amounts you'd get from food, but long-term safety data on high-dose supplements is sparse, so that's worth keeping in mind. Because there isn't enough safety data on supplement doses during pregnancy, the safety data advises against taking it then.
The same goes for breastfeeding — there isn't enough data to know it's safe at supplement doses, so it's best to avoid it. Talk to your doctor or pharmacist if you're pregnant, planning to become pregnant, or nursing and wondering whether this product is right for you.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredients we checked. Still, run your exact medications through the interaction tool on this page or confirm with your pharmacist before you begin.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and some safety-information gaps remain.
L-Aspartic Acid might appeal to someone interested in amino acid supplementation, but the evidence for its benefits isn't well established yet. If you're pregnant, breastfeeding, or taking medications, check with your doctor or pharmacist before starting.
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 1, 2012.
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
General information
Key facts about L-Aspartic Acid, straight from the product label.
| Brand | Douglas Laboratories |
|---|---|
| Net contents | 100 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jun 1, 2012 |
| DSLD ID | 8698 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years), Dairy Free, Sugar Free |
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 L-Aspartic Acid by Douglas Laboratories, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Aspartic Acid | 500 mg | -- |
Tap any ingredient to jump to its full detail below.
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.
Storage
For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)
Precautions
Tamper resistant package, do not use if outer seal is missing.
KEEP OUT OF REACH OF CHILDREN.
General
Formula #7432 / #97438
FDA Statement of Identity
A Dietary Supplement
Formulation
This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.
Suggested/Recommended/Usage/Directions
Suggested Usage: As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Aspartic Acid by Douglas Laboratories label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in L-Aspartic Acid by Douglas Laboratories
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Amounts shown are per serving.
L-Aspartic Acid
No knowninteractions
Aspartic acid is a common amino acid your body makes on its own and gets from protein-rich foods, so a true deficiency is rare. D-aspartic acid is hea...
L-Aspartic Acid monograph & interactionsL-Aspartic Acid by Douglas Laboratories Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in L-Aspartic Acid. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for L-Aspartic Acid, from the product label.
Douglas Laboratories
See all Douglas Laboratories products- Name
- Douglas Laboratories
- Street Address
- 600 Boyce Road
- City
- Pittsburgh
- State
- PA
- ZipCode
- 15205
- Web Address
- www.douglaslabs.com
L-Aspartic Acid by Douglas Laboratories: Common Questions
Does L-Aspartic Acid by Douglas Laboratories interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is L-aspartic acid safe to take if I'm pregnant?
Can I take this while breastfeeding?
Does L-aspartic acid really boost athletic performance or muscle strength?
What is L-aspartic acid supposed to do in the body?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-Aspartic Acid is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind L-Aspartic Acid’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
L-Aspartic Acid'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 1 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.
Aspartic Acid 1 reference
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. Washington, DC: The National Academies Press, 2005. Available at: https://doi.org/10.17226 DOI
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