Viagra, or sildenafil citrate, primarily treats erectile dysfunction (ED), a condition where a man has trouble getting or maintaining an erection firm enough for satisfactory sexual intercourse. It works by increasing blood flow to the penis.
How Viagra Works
Viagra inhibits an enzyme called phosphodiesterase-5 (PDE5). This allows more cyclic GMP to accumulate, relaxing the muscles in the blood vessels of the penis. This increased blood flow leads to an erection in response to sexual stimulation.
Viagra’s Uses Beyond ED
- Pulmonary Arterial Hypertension (PAH): Viagra is also used to treat PAH, a condition where blood pressure in the arteries leading to the lungs is abnormally high. It improves blood flow to the lungs. Raynaud’s Phenomenon: Some studies suggest Viagra might help improve blood flow to fingers and toes in individuals with Raynaud’s, a condition causing reduced blood circulation in response to cold or stress.
Important Considerations
Consult a Doctor: Always consult a healthcare professional before taking Viagra. They can assess your health, determine the appropriate dosage, and identify potential interactions with other medications. Side Effects: Common side effects include headaches, flushing, nasal congestion, and visual disturbances. Serious side effects are rare but possible. Interactions: Viagra can interact with certain medications, including nitrates. Inform your doctor about all medications and supplements you are taking. Dosage: Dosage depends on individual needs and should be determined by a doctor. Never exceed the recommended dosage.
Finding Reliable Information
For accurate and up-to-date information on Viagra, consult your doctor or pharmacist, or reputable sources like the official drug information websites from Health Canada or the FDA.
