Doctors suggest a light dose first and then may prescribe a high dose if needed. Vilitra 60 is available in different strengths in the market. But doctors can suggest the right amount of this medicine after knowing the medical condition and age of the patients. For this, patients are advised not to take more than the prescribed amount of this drug. If you think taking a larger amount can cure your problem quickly, you may experience serious side effects such as fainting, rash, drowsiness.