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Dietary supplement

Trib-650 Ingredients & Drug Interactions

by Dymatize Nutrition

Trib-650 label
See full label image
Capsule Category: Botanical
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 Trib-650 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

Trib-650 is a dietary supplement by Dymatize Nutrition with 1 active ingredient. Its ingredients are commonly taken for low libido and sexual function, athletic performance and muscle building, testosterone 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. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Trib-650 by Dymatize Nutrition

Ask about any prescription or over-the-counter medication and we check it for interactions with Trib-650 by Dymatize Nutrition — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Trib-650 by Dymatize Nutrition

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 Sep 17, 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.

Trib-650 contains one active ingredient: tribulus terrestris, a plant extract traditionally used to support sexual function and athletic performance. The capsule also contains several inactive ingredients — gelatin, vegetable cellulose, silicon dioxide, titanium dioxide, and magnesium stearate — which are fillers, binders, and capsule materials.

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

This product doesn't appear to be marketed for a specific use, so we graded Tribulus's overall clinical evidence instead.

Moderate

Some clinical evidence supports Tribulus for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Sexual dysfunction — rated "Possibly Effective" (Natural Medicines).

Tribulus terrestris is possibly effective for sexual dysfunction based on the evidence we hold. For athletic performance, the data suggests it's possibly ineffective.

We don't have enough reliable evidence to rate it for benign prostatic hyperplasia (enlarged prostate).

The evidence, ingredient by ingredient 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 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.

Tribulus is generally well tolerated in the short term in healthy adults, but long-term safety data and information about product quality are limited. Serious side effects are rare but have been reported — including liver and kidney injury, seizures, and in one case, swelling of the heart muscle.

More common, mild side effects may include abdominal pain, cramping, nausea, vomiting, diarrhea, or constipation, though one study found these complaints occurred at similar rates in both tribulus and placebo groups. Avoid Trib-650 during pregnancy because it may affect hormones and safety hasn't been established.

Avoid it while breastfeeding as well — there isn't enough reliable safety information. If you're pregnant, planning pregnancy, or breastfeeding, talk with your doctor or pharmacist before taking this product.

Side effects, ingredient by ingredient 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 1 matched ingredient 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.

Check before combining Trib-650 with blood pressure medications (antihypertensives), diabetes drugs, or lithium. Tribulus may lower blood pressure and blood sugar, and may increase lithium levels — all Moderate-severity concerns that could affect how these medications work or how much you need.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Trib-650 might help with sexual function, though the evidence is modest. If you take blood pressure medication, diabetes drugs, or lithium, you'll want to check with your doctor or pharmacist first — tribulus can affect how these work.

It's not for pregnancy or breastfeeding. Talk it over with your own healthcare provider before you start.

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 Nov 24, 2015.

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 Trib-650, straight from the product label.

Brand Dymatize Nutrition
Barcode (UPC) 705016140909
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Nov 24, 2015
DSLD ID 53273
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Dairy 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 Trib-650 by Dymatize Nutrition, 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:
1 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
UPC/BARCODE
705016140909
IngredientAmount% DV
Tribulus terrestris650 mg--

Other ingredients: Gelatin, Vegetable Cellulose, Silicon Dioxide, Titanium Dioxide, 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.
General

8056

Suggested/Recommended/Usage/Directions

Suggested Use: As an adult dietary supplement, take 1-2 capsules daily daily with a meal.

Precautions

Warning: This product is not intended for use by those with a serious medical condition or pregnant or lactating women.

Consult with your physician before use.

Keep out of reach of children.

Storage

Storage conditions: Store at room temperature 59(0)F - 86(0)F (15(0)C - 30(0)C).

Brand IP Statement(s)

Your Ambition. Our Nutrition.

Formulation

This product does not contain corn, yeast, wheat, soy, dairy, artificial flavors, artificial colors or preservatives.

Formula

650 mg Tribulus Terrestris Extract

FDA Statement of Identity

Dietary Supplement

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

See for yourself

Trib-650 by Dymatize Nutrition label

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

Trib-650 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 Trib-650 by Dymatize Nutrition

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.

Tribulus terrestris

Interacts with
259 drugs
650 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 monograph & interactions

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

Interaction report

Trib-650 by Dymatize Nutrition Drug Interactions

Want to check YOUR meds against Trib-650?

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 259

Individual Drug Interactions

The ingredients in Trib-650 interact with 259 drugs. Click any drug to see the details.

1 of the 1 ingredient in Trib-650 interact with drugs. Each result below shows which ingredient is responsible. Tribulus terrestris

Each ingredient & the kinds of drugs it affects

For each ingredient in Trib-650 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 terrestris3 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 full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Trib-650, from the product label.

Dymatize Nutrition

See all Dymatize Nutrition products
Name
Dymatize Enterprises, LLC
City
Dallas
State
TX
ZipCode
75234
Phone Number
(888) 334-5326/ (214) 445-4864
Web Address
Dymatize.com
Pharmacist Counseling Corner

Trib-650 by Dymatize Nutrition: Common Questions

Does Trib-650 by Dymatize Nutrition interact with any medications?
Yes. Based on its ingredients, Trib-650 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?
Trib-650 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 tribulus actually work for sexual function?
The evidence suggests it's possibly effective for sexual dysfunction — meaning there's some research backing it, but it's not definitive. Results vary between people, and more high-quality studies would help us understand how well it really works.
Can I take this if I'm pregnant or breastfeeding?
No. Avoid Trib-650 during pregnancy because it may affect hormones and safety isn't established. Avoid it while breastfeeding too — there's not enough reliable safety information. Talk with your doctor or pharmacist about whether it's right for you once you're no longer pregnant or nursing.
What side effects might I get?
Most people tolerate it well short-term. Mild ones include abdominal pain, cramping, nausea, vomiting, diarrhea, or constipation — though one study found these happened at the same rate in people taking placebo. Serious effects are rare but have included liver and kidney injury and seizures.
Is tribulus safe long-term?
Quality and long-term safety data are limited. We know it's generally well tolerated in the short term, but we don't have solid information about taking it for months or years. If you're considering long-term use, check with your doctor or pharmacist first.
What is tribulus terrestris?
It's a plant extract traditionally used in herbal medicine to support sexual function and athletic performance. In this product it's the only active ingredient.

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

Not sure if Trib-650 is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Trib-650 label
Go deeper

The Full Monographs Behind Trib-650’s Ingredients

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

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

Trib-650'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 10 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.

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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