Please help me doctor, As I am 47 but from last 2 ,3 months my penis not getting erection ,i am healthy 5.4 height 67 kg weight still I am not able to make sex properly with my she is my first and last women in my Life nerve had sex with other women. Due to got transferred weekly once I go home I will be very happy to go home but in vain, please suggest me some medicine for erection.