Vidalista 40 is the commonly used drug used to treat male s*xual disorders such as erectile dysfunction (ED). The active ingredient present in Vidalista 40 mg is Tadalafil. Vidalista is popular because it is very effective in treating difficulties in getting an erection. Consequently, the drug is also commonly referred to as "le weekender" in France. Erectile dysfunction medicine such as Vidalisat 40 mg can help a man have s*x within a standard timeline. If you have been having trouble triggering an erection during an interaction, consult your primary care physician before taking any erectile dysfunction medications.