Emerging evidence suggests that it may partly work through nitric oxide like Viagra and related drugs to improve erectile dysfunction, but the mechanism for its aphrodisiac activity is less certain. But as you get older, your body produces less HGH. Medications used may alter how these drugs usually act, causing undesirable side effects. Schisandra is considered a true prosexual herb and was used in Taoist practitice to enhance sexual energy and stamina in both men and women. Several studies have demonstrated that those active ingredients help [2]. Combining Viagra alternatives with prescription ED medications can be risky and is generally discouraged. Maca for men and women Maca Lepidium Meyenii is a root vegetable, related to the potato, which grows in the Peruvian Andes and has been used as a food staple since before the time of the Incas.Yes, penile pumps (also known as ED pumps) are over-the-counter devices that work to treat erectile dysfunction, similar to Viagra. Viagra (sildenafil) is usually . Unless you live on the border with Mexico, you can NOT buy Viagra over the counter in stores like CVS, Walgreens, GNC, or /5(3).