Most anti-asthma drugs can be administered by inhalation. The advantages of adm

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Most anti-asthma drugs can be administered by inhalation. The advantages of administering these drugs by this route include the therapeutic effects of delivering drugs to their site of action, systemic effects are minimized, and relief of acute attacks is rapid. Four types of inhalation devices are employed — metered dose inhalers, Respimats, dry-powder inhalers, and nebulizers. Discuss how each of these devices are used to treat asthma and asthma exacerbations.