Vidalista 5 is a prescription medicine used to treat erectile dysfunction, also known as male impotence. Men with ED are unable to get or sustain a hard erection during sexual engagement. Vidalista 5 is one of the several generic versions of Cialis that men 18 years of age and older are allowed to use. It is advised to take this generic Vidalista 5 once every 24 hours, preferably 30 to 60 minutes before you intend to have sex. Typical side effects of Vidalista 5 include headaches, heartburn, hot flashes, mild vision problems, and nasal congestion. It won't, however, cause you to get an erection unless you are sexually excited. However, it doesn't work unless you're sexually excited.