This document discusses various drugs used to treat hyperlipidemia. It describes how statins work by inhibiting cholesterol biosynthesis in the liver, leading to increased LDL receptor levels and lowered cholesterol. It also discusses other drugs like fibrates that lower triglycerides, bile acid sequestrants that lower cholesterol by increasing bile acid excretion, and niacin that reduces triglycerides and LDL while increasing HDL. The risks and mechanisms of these antihyperlipidemic drugs are summarized.