Drug Category: S

Generic Name: Sildenafil Common Brand Names: Viagra, Revatio Introduction Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) and pulmonary arterial hypertension (PAH). It was originally developed for the treatment of hypertension but is more commonly known for its use in treating ED. Conditions of Use (Indications) Erectile Dysfunction: Sildenafil is primarily used for the treatment of erectile dysfunction in men. Pulmonary Arterial Hypertension: It is used under the brand name Revatio for managing pulmonary hypertension to improve exercise capacity and reduce symptoms. Mechanism of Action Sildenafil works by inhibiting the enzyme PDE5, which is responsible for the breakdown of cyclic GMP (cGMP) in the

Generic Name: Simvastatin Common Brand Names: Zocor, Simlup, Simcard Introduction Simvastatin is a lipid-lowering medication belonging to the statin class. It is primarily used to reduce cholesterol levels and prevent cardiovascular diseases by inhibiting the synthesis of cholesterol in the liver. Conditions of Use (Indications) 1. Hypercholesterolemia: Treatment of elevated total cholesterol, LDL cholesterol, and triglycerides. 2. Cardiovascular Disease Prevention: Primary and secondary prevention of atherosclerotic cardiovascular events in individuals with or at high risk for coronary artery disease. 3. Familial Hypercholesterolemia: Both heterozygous and homozygous forms. Mechanism of Action Simvastatin is a prodrug converted in the liver to its active form. It inhibits HMG-CoA reductase, the rate-limiting enzyme in