Viagra, containing sildenafil citrate, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, facilitating an erection with sexual stimulation.
How Viagra Works
Sildenafil inhibits an enzyme called PDE5, allowing another chemical, cGMP, to remain active. Higher cGMP levels relax blood vessel muscles in the penis, resulting in improved blood flow. This process is triggered only by sexual stimulation; Viagra doesn’t cause erections spontaneously.
Beyond ED: Pulmonary Hypertension
Viagra also treats pulmonary arterial hypertension (PAH), a condition causing high blood pressure in the arteries leading to the lungs. In this context, sildenafil improves blood flow to the lungs, reducing strain on the heart. Dosage and application differ significantly from its ED treatment application; always follow physician’s instructions.
Important Considerations
Consult your doctor before using Viagra. It’s crucial to discuss your medical history, including existing conditions like heart disease or high blood pressure, and any medications you’re currently taking. Side effects, though usually mild, can include headaches, flushing, and nasal congestion. Rarely, more serious side effects may occur. Always follow prescribed dosage instructions.
Finding Reliable Information
Obtain Viagra only from licensed pharmacies or reputable online sources to ensure authenticity and safety. Beware of counterfeit medications, which may contain harmful substances.
