Nonprescription bronchodilators.
D001249:Asthma / Q000188:drug therapy; D006801:Humans; D009921:Metaproterenol / Q000627:therapeutic use*; D004366:Nonprescription Drugs / Q000627:therapeutic use*; D012648:Self Care; D014481:United States; D014486:United States Food and Drug Administration
D004366:Nonprescription Drugs; D009921:Metaproterenol