PRECAUTIONS: Before taking metaproterenol, tell your doctor or pharmacist if you are allergic to it; or to similar bronchodilators (e.g., albuterol, levalbuterol, salmeterol); or to sympathomimetic drugs (e.g., epinephrine, pseudoephedrine); or if you have any other allergies.Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart disease (e.g., high blood pressure, abnormal heart rhythm, coronary insufficiency), seizures, overactive thyroid (hyperthyroidism), diabetes, low blood potassium level (hypokalemia).This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.Caution is advised when using this drug in the elderly because they may be more sensitive to the effects of the drug, especially the effects on the heart.During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.
Quick GuideAsthma Symptoms, Causes, and Medications
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