Ad
related to: first gen antihistamine examples in the body pictures and information images
Search results
Results From The WOW.Com Content Network
Dexbrompheniramine is an antihistamine with anticholinergic properties [1] used to treat allergic conditions such as hay fever or urticaria. It is the pharmacologically active dextrorotatory isomer of brompheniramine. It was formerly marketed in combination with pseudoephedrine under the name Drixoral in the US and Canada. It is an alkylamine ...
Second-generation antihistamines selectively bind to the peripheral H-1 receptors outside the blood-brain barrier, therefore they are less likely to cause sedation. First-generation antihistamines usually last around 4–6 hours whilst second-generation antihistamines work for 12–24 hours. [7]
It is a first-generation antihistamine in the piperazine family of chemicals. [8] [4] Common side effects include sleepiness, headache, and dry mouth. [8] [9] Serious side effects may include QT prolongation. [9] It is unclear if use during pregnancy or breastfeeding is safe. [8]
The introduction of the first-generation antihistamines marked the beginning of medical treatment of nasal allergies. [28] Research into these drugs led to the discovery that they were H 1 receptor antagonists and also to the development of H 2 receptor antagonists , where H 1 -antihistamines affected the nose and the H 2 -antihistamines ...
Clemastine, also known as meclastin, is a first-generation H1 histamine antagonist (antihistamine) with anticholinergic properties (drying) and sedative side effects. [1] Like all first-generation antihistamines, it is sedating. [2] [3] Patented in 1960, it came into medical use in 1967. [4]
Diphenhydramine is a first-generation antihistamine used to treat several conditions including allergic symptoms and itchiness, the common cold, insomnia, motion sickness, and extrapyramidal symptoms. [19] [20] Diphenhydramine also has local anesthetic properties, and has been used as such in people allergic to common local anesthetics such as ...
Promethazine, sold under the brand name Phenergan among others, is a first-generation antihistamine, sedative, and antiemetic used to treat allergies, insomnia, and nausea. It may also help with some symptoms associated with the common cold [ 4 ] and may also be used for sedating people who are agitated or anxious, an effect that has led to ...
Mepyramine, also known as pyrilamine, is a first-generation antihistamine, targeting the H 1 receptor as an inverse agonist. [1] Mepyramine rapidly permeates the brain, often causing drowsiness. [2] It is often sold as a maleate salt, pyrilamine maleate.