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Guaifenesin might act as an expectorant by increasing the volume and reducing the viscosity of secretions in the trachea and bronchi via stimulation of the gastric mucosa. . This stimulation leads to an increased parasympathetic activity in the respiratory tract via the so-called gastro-pulmonary reflex, although some in vitro studies suggested that it might also act directly on the ...
It contains guaifenesin, an expectorant; and codeine, as the phosphate, an opioid antitussive. [1] It is taken by mouth. [1] It was approved for medical use in the United States in 2006. [1] In 2022, it was the 272nd most commonly prescribed medication in the United States, with more than 800,000 prescriptions. [3] [4]
An expectorant increases bronchial secretions and mucolytics help loosen thick bronchial secretions. Expectorants reduce the thickness or viscosity of bronchial secretions, thus increasing mucus flow that can be removed more easily through coughing. Mucolytics break down the chemical structure of mucus molecules.
Syrup of ipecac (/ ˈ ɪ p ɪ k æ k /), or simply ipecac, is a drug that was once widely used as an expectorant (in low doses) and a rapid-acting emetic (in higher doses). It is obtained from the dried rhizome and roots of the ipecacuanha plant (Carapichea ipecacuanha), from which it derives its name. It is no longer regularly used in medicine.
Side effects may include dizziness, sleepiness, skin rash, and nausea. [2] Guaifenesin has been used medically since at least 1933. [ 3 ] It is available as a generic medication and an over-the-counter drug .
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