L-Tryptophan, USP Ingredients & Drug Interactions
What is this page for?
First and foremost: checking L-Tryptophan, USP 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-Tryptophan, USP is a dietary supplement by Lidtke TryptoGOLD with 1 active ingredient.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-Tryptophan, USP by Lidtke TryptoGOLD
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
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
None of the active ingredients could be matched to our evidence database, so intended use can't be graded.
Why this rating?
- None of the active ingredients could be matched to a HelloPharmacist monograph, so intended use can't be graded against our evidence data.
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.
None of the active ingredients could be matched to our interaction database.
Why this rating?
- We couldn't match any ingredient to a HelloPharmacist monograph, so there was nothing to check interactions against.
None of the active ingredients could be matched to our safety data.
Why this rating?
- We couldn't match any ingredient to a HelloPharmacist monograph, so there was no safety data to measure.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Medication interactions could not be assessed, and safety information could not be assessed.
Assessment coverage: 0 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
General information
Key facts about L-Tryptophan, USP, straight from the product label.
| Brand | Lidtke TryptoGOLD |
|---|---|
| Barcode (UPC) | 630610003735 |
| Net contents | 30 Vegan Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Oct 22, 2021 |
| DSLD ID | 257296 |
| Product type | Amino Acid/protein |
| 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-Tryptophan, USP by Lidtke TryptoGOLD, sourced from the NIH Dietary Supplement Label Database.
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.
General Statements
Thank you for choosing L-Tryptophan by Lidtke. We sincerely wish the best of health for you and your family.
Lidtke stands behind each product and guarantees customer satisfaction for 365 days from the date of purchase.
As certified by the manufacturer.
Formulation
L-Tryptophan is a natural building block of serotonin, the neurotransmitter that plays an important role in appetite, mood, normal sleep patterns, and nervous-system health. When your body needs extra help producing serotonin for peaceful sleep and a more relaxed outlook, choose Lidtke L-Tryptophan.
Superb quality since 1994
Supports healthy sleep & mood
Purest on the planet
No added gluten, yeast, wheat, corn, soy, dairy, eggs, tree nuts, peanuts, fish, shellfish, salt, sugar, artificial color or flavor, or preservatives. Non-GMO
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.
Suggested/Recommended/Usage/Directions
Directions (Adults): Take one (1) to three (3) capsules or as directed by your doctor. Best is taken at bedtime or between meals.
Work up to the desired level gradually.
Directions: (Adults): Take one (1) capsule or as directed by a health-care professional. Best if taken at bedtime or between meals.
Precautions
Caution: Keep out of reach of children.
If you are pregnant, lactating, taking any medications (especially MAOIs, Tricyclics, or SSRIs), or have a medical condition, consult your doctor.
Discontinue use if adverse reaction occurs. Do not use if seal is damaged or missing.
1-800-404-8185 Adverse events may be reported above.
Storage
Keep lid tightly closed. Keep in a cool, dry place.
FDA Statement of Identity
A Dietary Supplement
Formula
TryptoGold Lidtke's own naturally produced, Ultra-premium L-Tryptophan
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
L-Tryptophan, USP by Lidtke TryptoGOLD 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-Tryptophan, USP by Lidtke TryptoGOLD
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.
TryptoGold
Other (inactive) ingredients: Vegan Capsule. These complete the product’s ingredient list but are not active constituents.
L-Tryptophan, USP by Lidtke TryptoGOLD Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in L-Tryptophan, USP. 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-Tryptophan, USP, from the product label.
Lidtke TryptoGOLD
See all Lidtke TryptoGOLD products- Name
- Lidtke Technologies
- City
- Chandler
- State
- AZ
- ZipCode
- 85226
- Phone Number
- 1-800-404-8185
- Web Address
- www.lidtke.com
L-Tryptophan, USP by Lidtke TryptoGOLD: Common Questions
Does L-Tryptophan, USP by Lidtke TryptoGOLD interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if L-Tryptophan, USP 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.
Sources & How We Checked
L-Tryptophan, USP'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.
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