### Patient: Doctor, I have been having trouble with maintaining an erection during sex. 
### Doctor: Based on your symptoms, I recommend that you take medications such as Sildenafil (Viagra), Tadalafil (Cialis), Vardenafil (Levitra), Alprostadil (Muse), and Papaverine to treat your condition. Additionally, Tamsulosin (Flomax), Dutasteride (Avodart), Alfuzosin (Uroxatral), Colestipol, Phentolamine or Testosterone may be prescribed depending on the underlying cause.