Dietary supplement. Works the very first time! Immediate results in one hour. Increases nitric oxide. Promotes blood flow to the genitals. Increases libido and sexual stamina. Increase strength of orgasms. These key components work to make Stamina-Rx unlike any sexual aid or stimulant you have ever tried! Xanthoparmelia Scabrosa Extract induces smooth muscle relaxation promoting blood flow to the penis. Cnidium Extract increases nitric oxide release. Yohimbe Extract promotes blood flow to the genitals and effectively improves libido. Bottle sealed with plastic. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)