Search results
Results from the WOW.Com Content Network
Pheniramine (trade name Avil among others) is an antihistamine with anticholinergic properties used to treat allergic conditions such as hay fever or urticaria.It has relatively strong sedative effects, and may sometimes be used off-label as an over-the-counter sleeping pill in a similar manner to other sedating antihistamines such as diphenhydramine.
Chlorphenamine is an alkylamine and is a part of a series of antihistamines including pheniramine (Naphcon) and its halogenated derivatives including fluorpheniramine, dexchlorphenamine (Polaramine), brompheniramine (Dimetapp), dexbrompheniramine (Drixoral), deschlorpheniramine, and iodopheniramine.
In 2020, the UK National Health Service wrote that "[m]ost people can safely take antihistamines" but that "[s]ome antihistamines may not be suitable" for young children, the pregnant or breastfeeding, for those taking other medicines, or people with conditions "such as heart disease, liver disease, kidney disease or epilepsy".
It is often sold as a maleate salt, pyrilamine maleate. The medication has negligible anticholinergic activity, with 130,000-fold selectivity for the histamine H 1 receptor over the muscarinic acetylcholine receptors (for comparison, diphenhydramine had 20-fold selectivity for the H 1 receptor).
That's 55 micrograms daily for people 14 years and older, per the NIH; "but you'll need slightly more if pregnant or breastfeeding," says Halperin.
The halogenated alkylamine antihistamines all exhibit optical isomerism; brompheniramine products contain racemic brompheniramine maleate, whereas dexbrompheniramine (Drixoral) is the dextrorotary (right-handed) stereoisomer. [2] [8] Brompheniramine is an analog of chlorpheniramine. The only difference is that the chlorine atom in the benzene ...
Tirzepatide Weight Loss Injections. Tirzepatide is the active ingredient in Mounjaro® and Zepbound®. Like Ozempic, Mounjaro is FDA-approved as a diabetes drug. It can help folks with type 2 ...
Nephazoline works by resulting in constriction of blood vessels thus decreasing redness while pheniramine works by blocking the effects of histamine to stop itching. [1] The combination was approved for medical use in the United States in 1994. [5] [6] [1] It is available over the counter.