kirazmattson
947 posts
Mar 31, 2026
10:42 PM
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Fildena 100 mg contains Sildenafil citrate, which is the same active ingredient found in Viagra. It works primarily by enhancing blood flow to the penis, helping men achieve and maintain an erection when sexually stimulated. Here’s a detailed breakdown of how it works: 1. Mechanism of Action Sexual arousal causes the release of nitric oxide (NO) in the penile tissue. Nitric oxide stimulates an enzyme called guanylate cyclase, which increases levels of cyclic guanosine monophosphate (cGMP). cGMP relaxes the smooth muscles in the blood vessels of the penis, allowing them to dilate and fill with blood. Fildena 100 Mg works by inhibiting the enzyme phosphodiesterase type 5 (PDE5), which normally breaks down cGMP. ? By blocking PDE5, cGMP stays active longer, maintaining the erection. 2. Usage Usually taken 30–60 minutes before sexual activity. Works only when there is sexual stimulation; it does not cause an erection spontaneously. The effect can last 3–5 hours, but this varies per individual. 3. Precautions Should not be taken with nitrates (e.g., nitroglycerin) as it can cause dangerous drops in blood pressure. Avoid alcohol in excess; it can reduce effectiveness. People with certain heart conditions, severe liver/kidney issues, or those on specific medications should consult a doctor first. 4. Side Effects Common side effects may include: Headache Flushing Indigestion Nasal congestion Dizziness or visual changes (rare) Serious side effects (rare) require immediate medical attention: Sudden vision loss Priapism (painful erection >4 hours) Chest pain or irregular heartbeat If you want, I can also explain the differences between Fildena 100 mg and lower doses, so you know why doctors might choose one dose over another.
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