Silagra 100 mg is a medication that contains sildenafil citrate, which is another PDE5 inhibitor used to treat erectile dysfunction (ED) in men. Here’s how it works and what to know about it: Mechanism of Action Inhibition of PDE5: Silagra blocks the enzyme phosphodiesterase type 5 (PDE5) in the penis. PDE5 normally breaks down cGMP, a molecule that relaxes smooth muscles and allows blood vessels to expand. Increase in cGMP: By preventing cGMP breakdown, Silagra helps smooth muscles in the penis relax, increasing blood flow. Requirement of ****** stimulation: The drug does not cause an erection on its own; Silagra 100 mg arousal is needed to initiate the natural release of nitric oxide, which triggers cGMP production. Dosage and Use Typical dose: 100 mg, taken about 30–60 minutes before ****** activity. Can be taken with or without food, though high-fat meals may delay its effect. Usually taken once per day. Onset and Duration Onset: 30–60 minutes. Duration: Approximately 4–5 hours. Precautions Do not combine with nitrates (e.g., nitroglycerin) — can cause dangerous blood pressure drops. Check heart health before use if you have heart disease. Common side effects: headache, flushing, indigestion, nasal congestion, dizziness, visual changes. Rare but serious: priapism (erection >4 hours), sudden vision or hearing loss.