Lungs, allergy and cough
Cough suppressants (antitussives)
Used for
Dry cough
How it works
Calm the cough reflex. Benzonatate numbs stretch sensors in the lungs instead.
Watch for
Benzonatate capsules are swallowed whole; chewing them can numb the mouth and throat and cause choking.
- Examples
- dextromethorphan (Delsym, the "DM")
- benzonatate (Tessalon Perles)
More in lungs, allergy and cough
- Beta-2 agonistsAsthma and COPD: open the airways
- Anticholinergic inhalersCOPD; keep airways open
- Inhaled corticosteroidsDaily asthma control (not for an attack)
- Leukotriene blockersAsthma and allergies (daily pill)
- AntihistaminesAllergies, itching, hives
- DecongestantsStuffy nose
- ExpectorantsChest congestion
A study and reference aid. Follow the product labeling and your pharmacist for anything about a patient's medicine.
Studying for the PTCE?
Drug classes are a big part of the Medications domain. Gutta's lessons and practice questions cover them, with an explanation for every answer.
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