What is the primary action of guaifenesin?

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Prepare for the Rasmussen Pharmacology Exam 3. This quiz includes multiple-choice questions with hints and explanations. Review essential pharmacological concepts and get ready for your exam!

Multiple Choice

What is the primary action of guaifenesin?

Explanation:
Guaifenesin acts as an expectorant. Its main action is to thin and loosen bronchial secretions and promote a productive cough, making it easier to clear mucus from the airways. By hydrating the mucus and reducing its viscosity, it enhances mucociliary clearance so coughing mobilizes and expels the secretions. It does not relieve bronchospasm (that would require a bronchodilator), it does not reduce mucus production, and it does not slow the respiratory rate.

Guaifenesin acts as an expectorant. Its main action is to thin and loosen bronchial secretions and promote a productive cough, making it easier to clear mucus from the airways. By hydrating the mucus and reducing its viscosity, it enhances mucociliary clearance so coughing mobilizes and expels the secretions. It does not relieve bronchospasm (that would require a bronchodilator), it does not reduce mucus production, and it does not slow the respiratory rate.

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