Don't buy it is just help less it has no use as a medical student vigra only help you to have a better erection it doesn't make ypu last long ypu will finish by tge time you always do but it has a lot of side effect ... not just on ur sex life but on ur mind and eye site you might lose it since it help you to have better erection buy opening all your body blood veins ur eye and mind will start having less blood than the usual and the drug/viagra last more than 4 hour and that will be bad