Isuprel is a medication that is used to treat various medical conditions, such as heart attacks, asthma, and chronic obstructive pulmonary disease (COPD). Isuprel belongs to the class of drugs that are called beta-agonists, which work by stimulating the beta-receptors in the body and relaxing the smooth muscles. Some of the synonyms that can be used for isuprel include isoproterenol, isoprenaline, and β-isopropylnorepinephrine. These drugs are similar in their mechanism of action to isuprel and are used to treat similar medical conditions. It is important to note that these drugs can have side effects and should only be used under the supervision of a healthcare provider.