Medications for erectile dysfunction
Medications for erectile dysfunction can be had orally, injected straight into the male organ as also inserted down the urethra. The FDA approved the first ever pill to treat erectile dysfunction named Viagra. There followed Levitra and Cialis since then. All the abovementioned drugs are termed PDE or phosphodiesterase inhibitors. They are taken 60 minutes prior to having sex and work by increasing the effects of the chemical nitric oxide that relaxes the smooth penile muscles at the time of sexual stimulation, thereby allowing increased amounts of blood to flow into the penile vessels. However, these drugs cannot produce an automatic erection like injections with drugs like Caverjet can do. A word of caution though: these are prescription drugs and should be taken only on the advice of a qualified physician.