Stiff Nights is a male sexual stimulant pill manufactured to help men experience and maintain an erection for sexual purposes, notes Best Male Enhancement Pill Reviews. However, Stiff Nights pills are not safe at all. The U.S. Food and Drug Administration issued a consumer warning against the product in 2009 because it contains sulfoaildenafil, an ingredient which is potentially dangerous.
Stiff Nights pills contain sulfoaildenafil, a substance highly regulated by the FDA. Sulfoaildenafil is chemically similar to sildenafil, a drug which is available only by prescription and which the FDA has declared illegal to use in supplements. Sulfoaildenafil has serious side effects. It interacts with nitrates, including nitroglycerin, and may cause extremely low blood pressure. RealMenReviewed.com cautions customers not to use Stiff Nights, advising them to try other male sexual stimulant products with stronger reputations for safety.
According to Yahoo Shopping, the supplement claims to intensify orgasm as well as recovery time. The makers of Stiff Nights also claim that the product increases endurance while at the same time intensifying satisfaction and pleasure. Although the side effects of taking Stiff Nights and Viagra together have not been tested, this combination is potentially dangerous, warns Yahoo Shopping. Best Male Enhancement Pill Reviews and RealMenReviewed.com both warn against using Stiff Nights.