Viagra, containing sildenafil citrate, primarily treats erectile dysfunction (ED). It works by increasing blood flow to the penis, facilitating an erection.
How Viagra Works
Sildenafil inhibits an enzyme called phosphodiesterase-5 (PDE5), allowing higher levels of cyclic GMP, a substance that relaxes blood vessel muscles. This relaxation leads to increased blood flow, crucial for achieving and maintaining an erection. The effects typically begin within 30-60 minutes of ingestion.
Beyond Erectile Dysfunction
While predominantly used for ED, sildenafil also finds application in treating pulmonary arterial hypertension (PAH). In this condition, it improves blood flow to the lungs, easing breathing difficulties.
Important Considerations
Consult a doctor before using Viagra. It’s not suitable for everyone. Side effects can include headaches, flushing, and nasal congestion. Interactions with certain medications are possible; Disclose all your medications to your physician. Proper dosage is critical. Never exceed the recommended dose. Use only as prescribed.
Dosage and Administration
Typical starting dose is 50mg, taken as needed, about an hour before sexual activity. Your doctor will determine the appropriate dose based on your individual needs and health status.
