Approved Erectile Dysfunction Drugs

Currently, there are 3 oral medications that were approved for the treatment of erectile dysfunction: Sildenafil( Viagra), Viagra Super Active, and viagra professional. All 3 belong to a class called selective enzyme inhibitors drugs. These drugs helps blocks an enzyme called phosphodiesterase-5. Blocking this enzyme greatly increases and maintains the proper amount of cyclic guanosine monophosphate, a chemical produced in the penis during sexual arousal. Proper amount of guanosine monophosphate may help maintain smooth muscles of the penis and increases blood flow.

Good Candidates to take Phosphodiesterase-5 Enzyme

These enzymes are safe and effective for many men whose impotence is related to the following conditions:

• Hormonal problems or psychologically induced impotence.
• Stable heart disease. However, these drugs should not be used for men who take nitrate drugs for chest pain or heart problems.
• Mild to moderate congestive heart failure.
• Controlled hypertension
• Controlled diabetes
• Kidney conditions, including those that require chronic dialysis and kidney transplantation.
• Parkinson’s disease

Higher-Risk Candidates to take Phosphodiesterase-5 Enzyme

Those taking nitrate drugs for angina or alpha-blockers should not take these enzymes.

• Severe heart disease, such as unstable angina, or arhythmias.
• Recent history of stroke
• Hypertension
• Uncontrolled diabetes
• Taking anticoagulant therapy
• Severe heart failure

Side Effects and Other Limitations of Phosphodiesterase-5 Enzyme

Common side effects of popular impotence drugs include flushing, gastrointestinal distress, headache, nasal congestion, back pain, and dizziness.

• Effects on the Heart. There were few reported incidence of fatal heart attacks in a small percentage of men taking sildenafil (viagra professional).
• Seizures. There have been a few reports of seizures in men taking sildenafil
• Interactions with other drugs
• Decrease in Effectiveness. Over time, Viagra Pro losses its effectiveness.