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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 ...
Decongestants and expectorants are both effective at treating different cold and allergy symptoms. Decongestants are a type of medicine that can provide short-term relief for a blocked or stuffy ...
A decongestant, or nasal decongestant, is a type of pharmaceutical drug that is used to relieve nasal congestion in the upper respiratory tract. The active ingredient in most decongestants is either pseudoephedrine or phenylephrine (the latter of which has disputed effectiveness ).
Decongestant nasal sprays are advised for short-term use only, preferably 5 to 7 days at maximum. Some doctors advise to use them 3 days at maximum. A recent clinical trial has shown that a corticosteroid nasal spray may be useful in reversing this condition. [3] Topical nasal decongestants include: Oxymetazoline; Phenylephrine; Xylometazoline
After an FDA advisory committee said the decongestant phenylephrine, an ingredient found in many oral cold and flu medications, is ineffective, experts weigh in on alternatives.
They provide temporary relief from symptoms of nasal congestion. Decongestants are available in oral and intranasal forms. Naphazoline and oxymetazoline are common topical (intranasal) decongestants, whilst pseudoephedrine is the most common example of oral decongestant used to reduce nasal congestion. Topical decongestants have a faster onset ...
Do over-the-counter decongestants like Sudafed PE work? Doctors have said oral phenylephrine is ineffective to relieve nasal congestion. An FDA panel will reevaluate the evidence.
Phenylpropanolamine (PPA), sold under many brand names, is a sympathomimetic agent which is used as a decongestant and appetite suppressant. [9] [1] [10] [11] It was previously commonly used in prescription and over-the-counter cough and cold preparations.
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