Sildenafil citrate is the key component in both brand-name Viagra and its generic counterparts. It works by inhibiting a specific enzyme, phosphodiesterase-5 (PDE5).
This inhibition increases blood flow to the penis, facilitating an erection in response to sexual stimulation. Crucially, sildenafil citrate doesn’t spontaneously cause erections; sexual stimulation remains necessary.
- Mechanism of Action: Sildenafil citrate selectively blocks PDE5, leading to increased levels of cyclic GMP (cGMP), a molecule crucial for smooth muscle relaxation in the penis. Dosage: Typical starting doses range from 25mg to 50mg, taken as needed, about an hour before sexual activity. Your doctor will determine the appropriate dose based on your individual needs and health conditions. Absorption: The drug is readily absorbed after oral administration, with peak plasma concentrations typically achieved within 30 to 120 minutes. Metabolism: Sildenafil citrate is primarily metabolized in the liver. Individuals with liver impairment may require dosage adjustments. Side Effects: Common side effects include headache, flushing, nasal congestion, and visual disturbances. These are usually mild and temporary. Severe side effects are rare but require immediate medical attention.
Generic sildenafil contains the same active ingredient as Viagra, ensuring comparable effectiveness. Differences primarily lie in inactive ingredients and pricing, not therapeutic action. Always consult your doctor before taking any medication, including sildenafil, to ensure its suitability for your health profile and to discuss potential interactions with other medications.
Always purchase medication from reputable sources to guarantee quality and safety. Be open with your doctor about your medical history and current medications. Follow your doctor’s instructions regarding dosage and timing meticulously.
