The medical name for Vikalis VX Chewable 20mg is Tadalafil, which belongs to the PDE-5 vasodilator family. These medications work by dilating the body’s blood vessels, especially around the genital area. This, in turn, increases blood flow to enable an erection. Vikalis VX Chewable 20mg is not aphrodisiac and stimulation is required to develop an erection. Vikalis VX Chewable 20mg is manufactured by Shree Venkatesh. The recommended dose is 1 oral pill 30 minutes before sexual activity. This medicine is supplied in a pack of 10 tablets and can last up to 12 hours in the body.