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Dietary supplement

Tribulus Maximum Strength Ingredients & Drug Interactions

by Muscle Force

Tribulus Maximum Strength label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Tribulus Maximum Strength 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

Tribulus Maximum Strength is a dietary supplement by Muscle Force with 2 active ingredients. Its ingredients are commonly taken for high cholesterol, liver health, brain and memory support.Based on those ingredients, 259 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Tribulus terrestris Whole Herb Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Tribulus Maximum Strength by Muscle Force

Ask about any prescription or over-the-counter medication and we check it for interactions with Tribulus Maximum Strength by Muscle Force — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Tribulus Maximum Strength by Muscle Force

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 11, 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 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains 2 active ingredients: lecithin and tribulus terrestris whole herb extract. Lecithin is a compound found naturally in egg and soy that your body uses for cell membranes and nerve function.

Tribulus terrestris is a plant extract traditionally used to support sexual function and athletic performance. The capsule itself is made from gelatin with magnesium stearate as a processing aid.

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: support natural testosterone and sexual function.
  • We looked for evidence on: Erectile dysfunction (ED), Male infertility, Sexual dysfunction, Premature ejaculation, Libido, Vitality — and 1 related terms.
  • The strongest evidence on file: Tribulus is rated "Possibly Effective" for Sexual dysfunction (Natural Medicines).
  • Also on file: Tribulus is rated "Possibly Ineffective" for Athletic performance.
  • Also on file: Tribulus is rated "Insufficient Reliable Evidence To Rate" for Erectile dysfunction (ED), Premature ejaculation, Male infertility.

For sexual dysfunction, tribulus is rated possibly effective — meaning there's some clinical evidence backing it, though the research isn't definitive. For athletic performance, the evidence doesn't support it; it's rated possibly ineffective.

For benign prostatic hyperplasia (enlarged prostate), there isn't enough reliable evidence to say one way or the other. Lecithin's evidence is mixed: it's rated likely ineffective for Alzheimer disease, and for conditions like age-related cognitive decline and anxiety, the evidence is too limited to rate.

The evidence, ingredient by ingredient Lecithin Tribulus

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Lecithin is generally well tolerated in food and supplement amounts, though the most common side effects are abdominal pain, diarrhea, bloating, and nausea. If you have an egg or soy allergy, lecithin can trigger allergic skin reactions.

Tribulus is also generally well tolerated in the short term in healthy adults, but long-term safety data are limited. Rare serious effects — liver and kidney injury, seizures, and painful erections — have been reported.

You should avoid tribulus if you're pregnant because it may affect hormones and safety isn't established. Avoid it while breastfeeding as well due to lack of reliable safety data.

Lecithin is likely safe in pregnancy and while breastfeeding.

Side effects, ingredient by ingredient Lecithin Tribulus

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 2 matched ingredients can interact with medications — Tribulus.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications; lithium.
  • For scale: 259 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.

Double-check this product before taking it if you're on blood pressure-lowering medications, blood sugar medications, or lithium — all carry Moderate risk of interaction. Your pharmacist can review your exact prescriptions and help you decide if it's safe to combine.

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.

If you're taking blood pressure medication, blood sugar medication, or lithium, check with your pharmacist before starting this product. If you're considering it for sexual function support, the evidence suggests it may help, but quality and long-term safety data are limited.

Anyone pregnant or breastfeeding should skip it. Talk to your pharmacist about whether it's right for your situation.

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 Aug 22, 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

At a glance

General information

Key facts about Tribulus Maximum Strength, straight from the product label.

Brand Muscle Force
Barcode (UPC) 739027551256
Net contents 60 Capsule(s)
Market status On market
Date entered into DSLD Aug 22, 2025
DSLD ID 336696
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
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 Tribulus Maximum Strength by Muscle Force, 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
739027551256
IngredientAmount% DV
Lecithin10 mg--
Tribulus terrestris Whole Herb Extract1500 mg--

Other ingredients: Gelatin, Magnesium Stearate

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.
Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take two (2) capsules per day with food and an 8 oz glass of water, or as directed by your physician.

Formula

Potency: 100% Pure and Potent Tribulus Optimized for 45% Steroidal Saponins Standarized Extract

100% Pure & Potent Tribulus Standardized Extract Minimum 45% Saponins

Formulation

How it Works: Tribulus contains Protodioscin, a Steroidal Saponin, which supports levels of the hormones testosterone, dihydrotestosterone and dehydroepiandrosterone (DHEA). Shown to successfully promote your body's natural production of testosterone, resulting in improved muscle mass, fat loss, strength, endurance and athletic performance.

Superior Bioavailability

FDA Disclaimer Statement

These statements have not been evaluated by the FDA. This product is not intended to treat, diagnose, cure, or prevent any disease.

General Statements

New Formula

Precautions

Caution: Do not exceed recommended dose. Do not use if safety seal is damaged or missing.

Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.

Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Keep out of the reach of children.

Storage

Store in a cool, dry place.

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

See for yourself

Tribulus Maximum Strength by Muscle Force label

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

Tribulus Maximum Strength 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 Tribulus Maximum Strength by Muscle Force

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(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.

Lecithin

No known
interactions
10 mg per serving

Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting...

Lecithin monograph & interactions

Tribulus terrestris Whole Herb Extract

Interacts with
259 drugs
1500 mg per serving Form: Steroidal Saponins

Tribulus is a plant supplement most often marketed to boost libido, testosterone, and athletic performance, but the human evidence behind these claims...

Tribulus terrestris Whole Herb Extract monograph & interactions

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

Interaction report

Tribulus Maximum Strength by Muscle Force Drug Interactions

Want to check YOUR meds against Tribulus Maximum Strength?

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
259Drugs
259 Moderate

Ingredients driving the most interactions

Tribulus terrestris Whole Herb Extract 259

Individual Drug Interactions

The ingredients in Tribulus Maximum Strength interact with 259 drugs. Click any drug to see the details.

1 of the 2 ingredients in Tribulus Maximum Strength interact with drugs. Each result below shows which ingredient is responsible. Tribulus terrestris Whole Herb Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Tribulus Maximum Strength 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.

Tribulus terrestris Whole Herb Extract3 drug types · 259 drugs

Antidiabetes Drugs

Taking tribulus with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research shows that Tribulus can lower blood glucose levels in adults with type 2 diabetes who are taking antidiabetes medications.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, taking tribulus with antihypertensive drugs might increase the risk of hypotension.
Animal research shows that tribulus can lower blood pressure by inhibiting angiotensin-converting enzyme (ACE). Tribulus has also demonstrated hypotensive effects in pre-hypertensive adults.

Likelihood Possible Evidence D
Lithium

Theoretically, tribulus might increase the levels and clinical effects of lithium.
Tribulus is thought to have diuretic properties. Due to these potential diuretic effects, tribulus might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Tribulus terrestris Whole Herb Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Tribulus Maximum Strength, from the product label.

Muscle Force

See all Muscle Force products
Name
Herbal Nutrition, L.L.C.
City
Alpharetta
State
GA
Phone Number
1-800-497-4709
Web Address
www.herbalnutritionhealth.com
Pharmacist Counseling Corner

Tribulus Maximum Strength by Muscle Force: Common Questions

Does Tribulus Maximum Strength by Muscle Force interact with any medications?
Yes. Based on its ingredients, Tribulus Maximum Strength has a known interaction with 259 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Tribulus Maximum Strength contains 2 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 while pregnant?
No — tribulus should be avoided during pregnancy because it may affect hormones and safety hasn't been established. Lecithin in this product is likely safe in pregnancy, but the tribulus is the concern here. Talk to your doctor or pharmacist for personalized advice.
Is this safe while breastfeeding?
No — tribulus should be avoided while breastfeeding due to lack of reliable safety information. Lecithin is likely safe while breastfeeding, but again, the tribulus is the risk. Check with your healthcare provider.
What are the most common side effects?
Both ingredients can cause abdominal pain, nausea, diarrhea, and bloating. Tribulus side effects were similar to placebo in one study, so they're not guaranteed. If you have an egg or soy allergy, lecithin can cause allergic skin reactions.
Does this really work for sexual dysfunction?
Tribulus is rated possibly effective for sexual dysfunction, meaning there's some clinical evidence, but it's not a slam-dunk. Results vary from person to person, and you'll likely need to try it for a while to see if it helps you.
Can I take this for athletic performance?
The evidence doesn't support it — tribulus is rated possibly ineffective for athletic performance. If that's your goal, you're better off looking elsewhere.

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

Not sure if Tribulus Maximum Strength 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.

Tribulus Maximum Strength label
Go deeper

The Full Monographs Behind Tribulus Maximum Strength’s Ingredients

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

Herb & supplement monograph

Lecithin

Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting most of its health claims is limited, t...

Read the full Lecithin monograph → Herb & supplement monograph

Tribulus

Interacts with 259 drugs

Tribulus is a plant supplement most often marketed to boost libido, testosterone, and athletic performance, but the human evidence behind these claims is weak and inconsistent. It is general...

Read the full Tribulus monograph →
Sources

Sources & How We Checked

Tribulus Maximum Strength'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 19 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.

Lecithin 9 references
  1. Buchman AL, Dubin M, Jenden D, et al. Lecithin increases plasma free choline and decreases hepatic steatosis in long-term total parenteral nutrition patients. Gastroenterology 1992;102:1363-70.
  2. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://b
  3. Chatellier G, Lacomblez L. Tacrine (tetrahydroaminoacridine; THA) and lecithin in senile dementia of the Alzheimer type: a multicentre trial. Groupe Francais d'Etude de la Tetrahydroaminoacridine. BMJ 1990;300:495-9.
  4. Gelenberg AJ, Dorer DJ, Wojcik JD, et al. A crossover study of lecithin treatment of tardive dyskinesia. J Clin Psychiatry 1990;51:149-53.
  5. Little A, Levy R, Chuaqui-Kidd P, Hand D. A double-blind, placebo controlled trial of high-dose lecithin in Alzheimer's disease. J Neurol Neurosurg Psychiatry 1985;48:736-42. PubMed
  6. Palm M, Moneret-Vautrin DA, Kanny G, et al. Food allergy to egg and soy lecithins. Allergy 1999;54:1116-7. PubMed
  7. Drachman DA, Glosser G, Fleming P, et al. Memory decline in the aged: treatment with lecithin and physostigmine. Neurology 1982;32:944-50. PubMed
  8. Gelenberg, A. J., Doller-Wojcik, J. C., and Growdon, J. H. Choline and lecithin in the treatment of tardive dyskinesia: preliminary results from a pilot study. Am J Psychiatry 1979;136(6):772-776. PubMed
  9. Electronic Code of Federal Regulations. Title 21, Chapter 1, Subchapter B, Part 184: Direct food substances affirmed as Generally Recognized as Safe. Subpart B - listing of specific substances affirmed as GRAS. Sec. 184.1400 Lecithin. Available at: https:

See these in context on the Lecithin monograph →

Tribulus 10 references
  1. Sharifi AM, Darabi R, Akbarloo N. Study of antihypertensive mechanism of Tribulus terrestris in 2K1C hypertensive rats: role of tissue ACE activity. Life Sci 2003;73:2963-71. PubMed
  2. Walker D, Bird A, Flora T, O'Sullivan B. Some effects of feeding Tribulus terrestris, Ipomoea lonchophylla and the seed of Abelmoschus ficulneus on fetal development and the outcome of pregnancy in sheep. Reprod Fertil Dev 1992;4:135-44. PubMed
  3. Al-Ali M, Wahbi S, Twaij H, Al-Badr A. Tribulus terrestris: preliminary study of its diuretic and contractile effects and comparison with Zea mays. J Ethnopharmacol 2003;85:257-60. PubMed
  4. Tabakova, P., Dimitrov, M., Ognyanov, K., and et al. Clinical study of Tribestan in females with endocrine sterility. Documentation for Registration (unpublished) 1999.
  5. Akhtari E, Raisi F, Keshavarz M, et al. Tribulus terrestris for treatment of sexual dysfunction in women: randomized double-blind placebo-controlled study. Daru 2014;22:40. PubMed
  6. Ryan M, Lazar I, Nadasdy GM, et al. Acute kidney injury and hyperbilirubinemia in a young male after ingestion of Tribulus terrestris. Clin Nephrol 2015;83(3):177-83. PubMed
  7. Postigo S, Lima SM, Yamada SS, et al. Assessment of the effects of Tribulus terrestris on sexual function of menopausal women. Rev Bras Ginecol Obstet 2016;38(3):140-6. PubMed
  8. Talasaz AH, Abbasi MR, Abkhiz S, Dashti-Khavidaki S. Tribulus terrestris-induced severe nephrotoxicity in a young healthy male. Nephrol Dial Tranplant 2010;25(11):3792-3. PubMed
  9. Samani NB, Jokar A, Soveid M, Heydari M, Mosavat SH. Efficacy of the hydroalcoholic extract of Tribulus terrestris on the serum glucose and lipid profile of women with diabetes mellitus: a double-blind randomized placebo-controlled clinical trial. J Evid
  10. Siddiqui MA, Itrat M, Mobeen A, Khan MI. Efficacy of khar-i-khasak (Tribulus terrestris Linn.) in prehypertension: a randomized, double-blind, placebo-controlled trial. J Complement Integr Med. 2021.

See these in context on the Tribulus 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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