Vidalista 20 mg, which contains the active ingredient tadalafil, usually starts working within 30 to 60 minutes after ingestion. However, its onset can vary depending on individual factors such as metabolism, overall health, and whether the medication was taken on an empty stomach or with food. Unlike some other ED medications, Vidalista 60 mg can last up to 36 hours, earning it the nickname "the weekend pill." This extended duration allows for more spontaneity in sexual activity.

It's important to note that sexual stimulation is still required for Vidalista to work effectively; it doesn't cause an erection just by taking the pill. As with any medication, the effectiveness and speed can vary from person to person, so it's best to consult with a healthcare provider for advice tailored to your specific situation.