Tribulus is a toxic plant commonly used in dietary supplements for improving athletic performance and enhancing sexual function. Early research shows that it may increase the level of various male hormones, which may be helpful for sexual problems or bodybuilding. However, there is not enough scientific evidence to suggest that Tribulus is indeed effective for these claimed uses.
Tribulus (also known as puncture vine) is a flowering plant that is usually considered a toxic weed. It has sharp spines that can puncture bicycle tires. It is a popular ingredient in dietary supplements, most often used to enhance sexual function or to improve athletic performance.
(Click Tribulus Benefits for more information on what the supplement is used for.)
This supplement has not been reported to cause side effects. However, there are several different side effects that might theoretically occur, based on how the supplement works.
(Click Tribulus Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
Short-term use of Tribulus appears to be relatively safe in many circumstances. However, some people may be more likely to experience problems than others. Therefore, you should talk with your healthcare provider prior to taking the supplement if you have:
- An enlarged prostate (also known as benign prostatic hyperplasia or BPH)
- Prostate cancer
- Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant (see Tribulus Terrestris and Pregnancy)
- Breastfeeding (see Tribulus Terrestris and Breastfeeding).
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Tribulus Safety for more information, including any available warnings and precautions.)