Vidalista 40 is used to treat erection dysfunction, a disorder that impairs male sexual performance. Vidalista 40 can be taken with or without food. Based on your clinical condition, your doctor will choose the best course of action and dose. When taking it for erectile dysfunction, wait at least 30 to 60 minutes before having sex. You should not use Vidalista 40 if you are allergic to it. Inform your physician if you use any other medications or if you experience any problems with your heart, liver, or kidneys. Most of these negative effects are temporary, and they might disappear with time. Consult your physician if any of these side effects worsen or continue. Avoid drinking alcohol as it could interfere with getting an erection.