Viagra contains sildenafil citrate, a medication that increases blood flow to the penis, aiding in achieving and maintaining an erection. This action occurs through the inhibition of a specific enzyme, phosphodiesterase-5 (PDE5).
How Sildenafil Works
Sildenafil selectively blocks PDE5, allowing increased levels of cyclic guanosine monophosphate (cGMP), a molecule crucial for penile erection. Higher cGMP levels relax the muscles in the blood vessels of the penis, increasing blood flow. This process is triggered by sexual stimulation; sildenafil doesn’t cause erections without sexual arousal.
Important Considerations
Dosage: Follow your doctor’s prescribed dosage carefully. Side effects: Common side effects include headache, flushing, and nasal congestion. Rare but serious side effects exist; consult your doctor immediately if you experience vision changes, chest pain, or prolonged erection. Interactions: Sildenafil interacts with nitrates and some other medications. Inform your doctor about all medications you are taking. Contraindications: Individuals with certain heart conditions, low blood pressure, or recent stroke should avoid sildenafil. Consult your doctor before use.
Remember, Viagra is a prescription medication. Always consult a healthcare professional before using it to assess your suitability and discuss potential risks and benefits. They can provide personalized guidance and ensure safe usage.
