Tadalista CT 20 mg and Viagra (Sildenafil) are both popular medications used to treat erectile dysfunction (ED), but they work in slightly different ways and have unique characteristics. Both are PDE5 inhibitors that increase blood flow to the penis, making it easier to achieve and maintain an erection. However, Tadalista CT 20 mg (which contains Tadalafil) may be more effective than Viagra (Sildenafil) in certain situations, depending on your individual needs and lifestyle. Differences Between Tadalista CT 20 mg and Viagra (Sildenafil) Active Ingredient: Tadalista CT 20 mg contains Tadalafil, a PDE5 inhibitor that has a long duration of action. Viagra contains Sildenafil, another PDE5 inhibitor but with a shorter duration of action compared to Tadalafil. Duration of Effect: Tadalista CT 20 mg (Tadalafil) has a longer duration of action, lasting up to 36 hours. This is why it’s often called the "weekend pill." Viagra (Sildenafil) usually works for about 4-6 hours, making it more suitable for short-term use. Onset of Action: Tadalista CT 20 mg typically begins to work within 30-60 minutes, similar to Viagra, but its long-lasting effects provide a wider window of opportunity for sexual activity. Viagra also typically starts working within 30-60 minutes, but the effects wear off much sooner, which can sometimes limit spontaneity. Formulation: Tadalista CT 20 mg comes in a chewable tablet (CT stands for chewable tablet), which can be taken without water, making it more convenient for some people. It also absorbs faster due to its chewable form. Viagra is typically available in standard tablets that require water for swallowing. When is Tadalista CT 20 mg More Effective Than Viagra? Longer Duration of Effect (36 Hours vs.