Take this medicine in the dose and duration as advised by your doctor. Vidalista 10 mg works bestwhen taken one half hour before sexual activity. You will not get an erection until you are sexually stimulated. The erection will go away by itself after a sexual encounter. The effects of the medication can last up to 36 hours, so you can enjoy the effects of the drugs for more than one day. Swallow it as a whole. Do not crush, chew or break it. It may be take with or without food. Seek emergency medical treatment or contact the doctor in case of an overdose.