Valif Oral Jelly 20 mg works by inhibiting the action of the PDE5 enzyme, which is responsible for reducing blood flow to the penis. When PDE5 is inhibited, it helps the blood vessels in the penis relax, leading to improved blood flow. This makes it easier for men with erectile dysfunction to achieve and maintain an erection in response to sexual stimulation.

https://www.genericday.com/val....if-oral-jelly-20-mg.