As a beta blocker, Timolol maleate USP is used for treating chest pain ( associated with angina caused by insufficient flow of blood in the heart) and high blood pressure. It is effective in minimizing the risk of heart attack. It blocks activities of different enzymes in the body to control high blood pressure, any abnormal condition in heart rhythm and other symptoms that may lead to cardiac ailment. Its eye application is used for treating glaucoma. Composition of Timolol maleate USP is effective in reducing eye pressure by minimizing the amount of fluid discharged into the eyes.