software erection

I am experience an erection but not very stiff and once erected; the erection drops  after a short period. what could be the problem? I tried viagra 50mg but never help.

[metropolis]

ED is the inability to attain or MAINTAIN an erection. You need to go see a doctor (urologist) ASAP to find out what's really causing this. Meanwhile, you could try another PDE-5 inhibitor (Cialis or Levitra), VIGAMED (oral phentolamine) or even a **** ring (it traps blood inside the penis and prolongs your erections - don't wear it for more than 20 minutes, though). But, again, only a doctor can prescribe the right treatment.