It is available as an oral supplement in a few different forms, including propionyl L-carnitine, to boost the L-carnitine naturally made in the body. Its benefits in treating peripheral artery ...

Some ingredients that may provide similar benefits to Viagra include: dehydroepiandrosterone (DHEA) L-arginine ginseng Propionyl-L-carnitine yohimbe Find out more about OTC alternatives to Viagra.