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Benzonatate (/ b ɛ n ˈ z oʊ n ə t eɪ t /), sold under the brand name Tessalon among others, is a medication that is used for the symptomatic relief of cough. [7] [8] Benzonatate is taken by mouth. [7] [5] Effects generally begin within 20 minutes and last between 3 and 8 hours. [7] [3]
Some cough medicines may be no more effective than placebos for acute coughs in adults, including coughs related to upper respiratory tract infections. [7] The American College of Chest Physicians emphasizes that cough medicines are not designed to treat whooping cough , a cough that is caused by bacteria and can last for months. [ 8 ]
Treatment for wet coughs is often targeted towards suppressing the cough entirely, whereas for dry coughs it may be more focused on soothing the associated sore throat, he explains.
A dry cough is a persistent cough where no mucus is present; this can be a sign of an infection. A chronic wet cough is a cough where excess mucus is present; depending on the colour of the phlegm, bacterial infections may be present. [16] A stress cough is when the airways of the throat are blocked to the point that it causes a reflexive spasm.
The cough may persist for several weeks afterward with the total duration of symptoms usually around three weeks. [2] [1] Some have symptoms for up to six weeks. [3] In more than 90% of cases, the cause is a viral infection. [1] These viruses may be spread through the air when people cough or by direct contact. [2]
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Coughs tend to fall into one of two categories: wet or dry, says Panagis Galiatsatos, director of the Tobacco Treatment Clinic and an assistant professor of medicine at Johns Hopkins Medicine.
A throat lozenge (also known as a cough drop, sore throat sweet, troche, cachou, pastille or cough sweet) is a small, typically medicated tablet intended to be dissolved slowly in the mouth to temporarily stop coughs, lubricate, and soothe irritated tissues of the throat (usually due to a sore throat or strep throat), possibly from the common ...