Viagra, also known as sildenafil, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, facilitating an erection.
How it works: Viagra blocks the action of an enzyme called PDE5, allowing another chemical (cGMP) to remain active. Higher cGMP levels promote relaxation of blood vessels in the penis. This improved blood flow makes it easier to achieve and maintain an erection during sexual stimulation.
Important Note: Viagra does not cause erections spontaneously. Sexual stimulation is still necessary.
Beyond ED: While primarily known for ED, Viagra also treats pulmonary arterial hypertension (PAH), a type of high blood pressure affecting the arteries in the lungs. It improves blood flow in the lungs, easing symptoms.
Dosage and Side Effects: Your doctor will determine the appropriate dosage. Common side effects include headache, flushing, nasal congestion, and upset stomach. Serious side effects are rare but require immediate medical attention. Discuss potential side effects with your physician before starting treatment.
Before taking Viagra: Consult your doctor about your medical history, including any heart conditions, high or low blood pressure, or eye problems. Interactions with other medications are possible. Your doctor will assess your suitability for Viagra.
