L-Lysine Monolaurin 1:1 Ratio Ingredients & Drug Interactions
by Solaray
What is this page for?
First and foremost: checking L-Lysine Monolaurin 1:1 Ratio 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-Lysine Monolaurin 1:1 Ratio is a dietary supplement by Solaray with 2 active ingredients. Its ingredients are commonly taken for cold sores (herpes labialis), genital herpes outbreaks, supporting protein and collagen formation.Based on those ingredients, 1 medication has a known interaction with it, the most serious rated minor. The ingredients most likely to interact are L-Lysine Hydrochloride. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against L-Lysine Monolaurin 1:1 Ratio by Solaray
Ask about any prescription or over-the-counter medication and we check it for interactions with L-Lysine Monolaurin 1:1 Ratio by Solaray — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of L-Lysine Monolaurin 1:1 Ratio by Solaray
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 2 active ingredients in a 1:1 ratio: L-lysine hydrochloride and monolaurin. L-lysine is an amino acid (a building block your body uses to make protein), while monolaurin is a fatty acid derived from coconut and palm oils.
The capsule also contains cellulose, silica, and magnesium stearate as inactive ingredients.
Does it work?
Moderate evidence
The evidence we hold shows L-lysine is possibly effective for herpes labialis (cold sores) — meaning some clinical research supports it, but more high-quality studies are needed. For child growth, pressure ulcers, and diabetic foot ulcers, we have insufficient evidence to rate L-lysine.
Monolaurin's effectiveness for bacterial vaginosis has not been established in the data we hold.
How safe is it?
Well-documented data
L-lysine is generally well tolerated at typical doses, though high amounts may cause stomach upset (abdominal pain, diarrhea, or indigestion). Long-term safety isn't well studied.
One case report linked very high-dose oral lysine to a kidney inflammation, but this is rare. Lysine from food is fine; supplement use in pregnancy isn't well studied, so check with your doctor first.
There isn't enough data on supplement use while breastfeeding either. Monolaurin is often well tolerated in food-related amounts, but supplement safety in humans hasn't been well studied.
The safety data advises against use during pregnancy. While lauric acid (what monolaurin is made from) occurs naturally in breast milk, monolaurin supplement safety while breastfeeding is unknown — use caution and talk to your doctor.
Meds to double-check
Minor interactions only
If you take 5-HT4 agonists (medications for certain gut disorders), double-check with your pharmacist before adding this product — L-lysine may reduce how well they work.
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.
This product may be worth considering if you get cold sores and want to try L-lysine, since there's some evidence it helps. If you take any medications for gut disorders or are pregnant or breastfeeding, talk to your pharmacist or doctor first before starting.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 23, 2025.
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-Lysine Monolaurin 1:1 Ratio, straight from the product label.
| Brand | Solaray |
|---|---|
| Barcode (UPC) | 076280352818 |
| Net contents | 60 VegCap(s) |
| Market status | On market |
| Date entered into DSLD | Jan 23, 2025 |
| DSLD ID | 326039 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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-Lysine Monolaurin 1:1 Ratio by Solaray, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Lysine Hydrochloride | 500 mg | -- |
| Monolaurin | 500 mg | -- |
Other ingredients: Cellulose, Silica, Magnesium Stearate
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.
Brand IP Statement(s)
Solaray Est. 1973 A Brighter Way 1973
Formulation
Immune Support
FDA Statement of Identity
Dietary Supplement
Seals/Symbols
Lab Verified
General Statements
Since 1973, we've scoured the globe for the highest quality ingredients, connecting you with the most efficacious supplements that help you live brighter & embrace the moments that matter most.
100% PCR Bottles
Precautions
Warning: Do not use if safety seal is broken or missing.
Keep out of reach of children.
Keep your licensed health care practitioner informed when using this product.
Suggested/Recommended/Usage/Directions
Directions: Use only as directed. Take 2 VegCap daily with a meal or glass of water.
Storage
Store in a cool, dry place.
Formula
Discussion: L-Lysine is an amino acid produced naturally by a microbiological fermentation process and is an essential component of protein found naturally in the human body. Monolaurin is a mono-ester of lauric acid, a fatty acid found in coconut oil and present in breast milk. They have been studied for their reputed ability to provide nutritive support for the immune system.
FDA Disclaimer Statement
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Lysine Monolaurin 1:1 Ratio by Solaray 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-Lysine Monolaurin 1:1 Ratio by Solaray
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 VegCap(s) Dosage formCapsule Servings per container30 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.
L-Lysine Hydrochloride
Interacts with1 drug
Lysine is an essential amino acid your body cannot make on its own, so it must come from food or supplements. People most often take extra lysine to t...
L-Lysine Hydrochloride monograph & interactionsMonolaurin
No knowninteractions
Monolaurin is a compound made from lauric acid, a fatty acid found in coconut oil and breast milk, and it is marketed mostly for immune and antimicrob...
Monolaurin monograph & interactionsOther (inactive) ingredients: Cellulose, Silica, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.
L-Lysine Monolaurin 1:1 Ratio by Solaray Drug Interactions
HelloPharmacist Interaction Report
Solaray's L-Lysine Monolaurin 1:1 Ratio has one documented interaction, affecting a small group of medications.
L-lysine may reduce the effects of 5-HT4 agonists (drugs that work on a specific serotonin receptor to treat certain gut disorders). Animal research suggests lysine can block this receptor, which theoretically could make these medications less effective.
Read the full breakdown — every affected drug type, severity by severity
Monolaurin, the second active ingredient, has no interactions documented in our data.
Additionally, check your exact medications using the search tool on this page. Altogether, these interactions span 1 individual medication.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against L-Lysine Monolaurin 1:1 Ratio?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in L-Lysine Monolaurin 1:1 Ratio interact with 1 drug. Click any drug to see the details.
1 of the 2 ingredients in L-Lysine Monolaurin 1:1 Ratio interact with drugs. Each result below shows which ingredient is responsible. L-Lysine Hydrochloride
TegaserodZelnorm
How Tegaserod interacts with L-Lysine Monolaurin 1:1 Ratio — through 1 ingredient. Tap an ingredient for the detail:
L-lysine Hydrochloride5-ht4 Agonists Minor
Interaction Summary
Theoretically, lysine may reduce the effects of 5-HT4 agonists.
Read the full L-lysine Hydrochloride + Tegaserod interactionEach ingredient & the kinds of drugs it affects
For each ingredient in L-Lysine Monolaurin 1:1 Ratio 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.
L-Lysine Hydrochloride
5-Ht4 Agonists
Theoretically, lysine may reduce the effects of 5-HT4 agonists.
Animal research suggests that L-lysine is a partial serotonin receptor 4 (5-HT4) antagonist and inhibits diarrhea induced by the 5-HT4 agonist, 5-hydroxytryptophane.
Brand information
Manufacturer and brand details for L-Lysine Monolaurin 1:1 Ratio, from the product label.
L-Lysine Monolaurin 1:1 Ratio by Solaray: Common Questions
Does L-Lysine Monolaurin 1:1 Ratio by Solaray interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does L-lysine actually help with cold sores?
What side effects should I watch for?
Is it safe to take while pregnant?
Can I take it while breastfeeding?
What are L-lysine and monolaurin?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-Lysine Monolaurin 1:1 Ratio 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-Lysine Monolaurin 1:1 Ratio’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Lysine
Interacts with 1 drugLysine is an essential amino acid your body cannot make on its own, so it must come from food or supplements. People most often take extra lysine to try to prevent or shorten cold sores, but...
Read the full Lysine monograph → Herb & supplement monographMonolaurin
Monolaurin is a compound made from lauric acid, a fatty acid found in coconut oil and breast milk, and it is marketed mostly for immune and antimicrobial support. While laboratory studies su...
Read the full Monolaurin monograph →Sources & How We Checked
L-Lysine Monolaurin 1:1 Ratio'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 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.
Lysine 7 references
- Thein DJ, Hurt WC. Lysine as a prophylactic agent in the treatment of recurrent herpes simplex labialis. Oral Surg Oral Med Oral Pathol 1984;58:659-66. PubMed
- McCune MA, Perry HO, Muller SA, O'Fallon WM. Treatment of recurrent herpes simplex infections with L-lysine monohydrochloride. Cutis 1984;34:366-73.
- DiGiovanna JJ, Blank H. Failure of lysine in frequently recurrent herpes simplex infection. Treatment and prophylaxis. Arch Dermatol 1984;120:48-51. DOI
- Milman N, Scheibel J, Jessen O. Lysine prophylaxis in recurrent herpes simplex labialis: a double-blind, controlled crossover study. Acta Derm Venereol 1980;60:85-7.
- Griffith RS, Walsh DE, Myrmel KH, et al. Success of L-lysine therapy in frequently recurrent herpes simplex infection. Treatment and prophylaxis. Dermatologica 1987;175:183-90. DOI
- Lo JC, Chertow GM, Rennke H, Seifter JL. Fanconi's syndrome and tubulointerstitial nephritis in association with L-lysine ingestion. Am J Kidney Dis 1996;28:614-7. PubMed
- Smriga M, Torii K. L-Lysine acts like a partial serotonin receptor 4 antagonist and inhibits serotonin-mediated intestinal pathologies and anxiety in rats. Proc Natl Acad Sci U S A. 2003 Dec 23;100(26):15370-5.
Monolaurin 2 references
- FDA, Center for Food Safety and Applied Nutrition, Office of Premarket Approval, EAFUS: A food additive database. Website: vm.cfsan.fda.gov/~dms/eafus.html (Accessed 23 February 2006).
- Mancuso AC, Widdice LE, Hughes BL, et al. Five Percent Monolaurin Vaginal Gel for the Treatment of Bacterial Vaginosis: A Randomized Placebo-Controlled Trial. J Low Genit Tract Dis. 2020 Jul;24(3):277-283. PubMed
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