SUBJECT: sexual dysfunction
MESSAGE: Dear Doctor  i am male of 39 years, and facing problem of sexual weekness, erection is ok, once my penis stand up and after some seconds its become down like dead, i also feel size is also came down, i am worried, kindly suggest me a medicine for such decease i shall be very great full to you.  Regards [NAME]  [LOCATION]

Summarized question: What are the treatments for erectile dysfunction?