Metoprolol is the generic form of the brand-name drug Lopressor, prescribed to treat high blood pressure and prevent angina (chest pain). Metoprolol is a type of medication called a beta blocker. It works by relaxing blood vessels and slowing heart rate, which improves blood flow and lowers blood pressure.
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Trending Now. Answers. Best Answer: There are several types of doctors that treat asthma. -An Otolaryngologist, also known as an 'Ear, Nose, and Throat' Dr. specializes in, obviously, the ear, nose and throat, and related parts of the neck and head. -A Pulmonologist specializes is respiratory diseases.