decongestant


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Related to decongestant: antihistamine

decongestant

 [de″kon-jes´tant]
1. tending to reduce congestion or swelling, usually of the nasal membranes. Called also decongestive.
2. an agent that has this effect; it may be inhaled, taken as spray or nose drops, or used orally in liquid or tablet form. Nasal decongestants act by reducing swelling of the membranes and thus opening up the nasal passages. Among the leading ones are epinephrine, ephedrine, and phenylephrine. antihistamines may also be effective either alone or in combination with decongestants. A decongestant must be used several times a day to be helpful; but excessive use may cause headaches, dizziness, or other disorders and sometimes the medicine itself may cause reactive nasal swelling.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

de·con·ges·tant

(dē'kon-jes'tant),
1. Synonym(s): decongestive
2. An agent that possesses this action.
Farlex Partner Medical Dictionary © Farlex 2012

decongestant

(dē′kən-jĕs′tənt)
n.
A medication or treatment that decreases congestion, as of the sinuses.
adj.
Capable of relieving congestion.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

decongestant

Pharmacology An agent that ↓ swelling or congestion–eg, nasal decongestants–eg pseudoephedrine, phenylpropanolamine, which constrict blood vessels, ↓ blood flow to nasal mucosa and sinuses and ↓ mucosal edema Adverse effects Insomnia, irritability; HTN, renal failure, arrhythmias, psychosis, strokes, seizures, rebound effect; used with caution in Pts with HTN, heart disease, seizure disorders, or hyperthyroidism, or in those receiving MAOIs. See Nasal decongestant, Rebound effect, Rhinitis medicamentosa, Steam decongestant.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

de·con·ges·tant

(dē-kŏn-jes'tănt)
1. Having the property of reducing congestion.
2. An agent that reduces congestion.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

decongestant

A drug or treatment that reduces the blood flow through, and swelling of, mucous membranes, especially those lining the nose and sinuses.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Decongestant

Medicines that shrink blood vessels and consequently mucus membranes. Pseudoephedrine, phenylephrine, and phenylpropanolamine are the most common.
Mentioned in: Nasal Polyps
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
They wrote: "A small number of trials report contradictory results for decongestants and antihistamines on nasal symptoms and safety in children.
While the relationship between responses to the topical decongestant agent and steroid therapy was assessed by the Pearson correlation test, the ROC curve was used to calculate the threshold value.
OTC nasal decongestant sprays relieve swollen nasal membranes almost immediately after they are used.
"Often the patient doesn't mention a nasal decongestant when listing his medications, because it's over-the-counter.
And caffeine will only make you more tense if you are taking a decongestant already.
But when the decongestant effect of the drug wears off, nasal obstruction rapidly returns.
Eyewashes and eye 'brighteners' are general sales list (GSL), with the latter being an alternative to pharmacy (P)-medicines containing topical ocular decongestants or a decongestant and antihistamine.
"I did get better," says Anna Taylor, 23, who offered up her stuffy nose for a study of a new decongestant. Every hour, she snorted down a tube hooked up to an airflow-measuring device.
Over-use of some decongestant sprays can damage the nasal linings and they should not be used for more than about two weeks.
Decongestant tablets (such as Pseudoephedrine or Phenlephrine) - will unblock and dry the nose.
Use a decongestant spray before swimming and,if possible,keep your home environment slightly humid.