Not Medical Advice: The Enduros Male Enhancement Supplement claims very few side effects, and they are reportedly very mild. The most common side effects are nausea and heartburn. These can be treated with over-the-counter medicines or a prescription from a doctor if they occur.
This particular male enhancement supplement claims to be the most effective male enhancement supplement today. Reviewers warn about the lack of clinical studies to back up claims and no money back guarantee.
There is currently a free trial for Enduros going on (but note that the actual price of the product isn't shown). You pay shipping and handling when you order online at Tryenduros.com.
Instead of purchasing over the counter products, men with persistent concerns about erectile dysfunction might consider opening up about them with their doctors.