Zenegra 100 mg contains sildenafil citrate, which relaxes the blood vessels in the penis and increases blood flow during sexual stimulation. This helps men achieve and maintain an erection when they are sexually aroused. It usually starts working within 30–60 minutes and helps for several hours.  Effectiveness Because it has the same active ingredient as other well‑known ED medications, its effectiveness is generally comparable to them when taken as prescribed. It only works with sexual stimulation; it won’t cause erections on its own. The response can vary among individuals depending on overall health, age, and the underlying cause of ED.  Zenegra 100 mg  Users Should Know Reliable for many men: Most men experience improved erectile function with sildenafil if taken correctly and under medical guidance. Not a cure: It treats symptoms of ED but doesn’t cure the condition or increase libido. Side effects can include headache, flushing, dizziness, or gastric discomfort, but are usually mild. Avoid use with nitrate medicines (for chest pain), as that can cause dangerous drops in blood pressure.   Summary Yes — Zenegra 100 mg is generally considered a reliable and effective treatment for erectile dysfunction when used as directed and under medical supervision. Its effectiveness is comparable to other sildenafil products because it contains the same active drug that has been trusted for many years in ED therapy. If you’d like, I can compare Zenegra 100 mg with other ED meds