Final answer:
Statins are a class of drugs that lower cholesterol by inhibiting the HMG-CoA reductase enzyme in the liver, thereby reducing the body's cholesterol synthesis. Examples of statins include Atorvastatin and Rosuvastatin.
Step-by-step explanation:
The class of drugs that block the enzyme in the liver responsible for making cholesterol is known as statins. Examples include Atorvastatin (Lipitor) and Rosuvastatin (Crestor). These drugs act as inhibitors of the enzyme HMG-CoA reductase, which plays a crucial role in the synthesis of cholesterol from lipids within the body. The inhibition of this enzyme by statins results in a decreased production of cholesterol.
While statins work by inhibiting cholesterol synthesis, it's important to monitor for potential side effects such as liver damage and to ensure that lipid levels are managed effectively. Other classes of drugs that affect cholesterol levels include nicotinic acids and bile sequestrants, though their mechanisms differ from statins.