Tadaga 5 mg (Tadalafil) and Sildenafil (Viagra) both treat erectile dysfunction but differ in onset and duration. Tadaga 5 mg works within 30–60 minutes and lasts up to 36 hours, making it ideal for spontaneous intimacy. Sildenafil acts faster, in about 30 minutes, but lasts only 4–6 hours. While both are effective, Tadaga offers longer-lasting results with lower daily doses and fewer timing constraints. Sildenafil may suit those seeking short-term, fast-acting results. Choice depends on lifestyle, health, and preference. Consult a doctor for personalized recommendations.