Malegra 100 is one of the best tablets containing the active ingredient sildenafil citrate which is mainly used to treat erectile dysfunction in men. The malegra 100 mg drug is a stimulant for the treatment of penis erection in men during sexual activity, and its effect can last up to 4-6 hours. Therefore, men should take this medicine 30 minutes before sexual intercourse. This medicine comes in various dosages, so you need to consult your doctor when taking this medicine.