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 taken with or without food. Seek emergency medical treatment or contact the doctor in case of an overdose.