Metered dose inhalers. Safe if used properly.
Simpson
F G
FG
D000318:Adrenergic beta-Agonists / Q000008:administration & dosage*; D001249:Asthma / Q000188:drug therapy*; D006801:Humans; D009330:Nebulizers and Vaporizers; D010353:Patient Education as Topic; D012449:Safety
D000318:Adrenergic beta-Agonists