Can I take Melatonin SR with Tribulus?

Understanding the interactions, benefits, and safety of combining these two powerful supplements.

Melatonin SR
+
Tribulus

Short answer

We found no documented interaction between Melatonin and Tribulus terrestris in the sources below. That isn't proof the combination is right for you: check each one's cautions, and ask your pharmacist if you take medication.

Melatonin (slow release)

What it is: A slow-release form of melatonin, the hormone the brain makes in the dark to set your sleep-wake clock.

What the research says: Melatonin may help with jet lag and some circadian sleep problems. Sleep-medicine guidelines say there isn't enough evidence to recommend it for chronic insomnia.

Cautions

  • Short-term use seems safe for most people; long-term safety isn't known.
  • Older adults may feel drowsy the next day.

Medicines to check

  • Blood thinners and epilepsy: use only under medical supervision

Source: NIH National Center for Complementary and Integrative Health: Melatonin: What You Need To Know (updated May 2024)

Tribulus terrestris

What it is: A plant sold with claims that it raises testosterone.

What the research says: The few studies on strength or muscle found no benefit.

Cautions

  • It hasn't been studied enough to know whether it's safe; high doses damaged the heart, liver and kidneys in animals.
  • Sports-medicine experts advise against supplements claimed to boost testosterone.

Medicines to check

  • Talk to your clinician if you take any medicine

In Holitro: Tribulus (500 mg per capsule)

Source: NIH Office of Dietary Supplements: Dietary Supplements for Exercise and Athletic Performance (updated March 2021)

Check with your doctor or pharmacist, especially if you take medication.

Check your stack — free

Educational information only, not medical advice. This reflects general ingredient overlap, not a personalized safety review. Always check with your doctor or pharmacist before combining supplements, especially if you take medication, are pregnant or nursing, or manage a health condition. These statements have not been evaluated by the FDA.

Stop Guessing Your Dosages.

Balancing dosages across multiple different bottles is risky, inefficient, and expensive. Melatonin SR is already lab-dosed and delivered daily in our Sleep Pack — one less bottle to manage.

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