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Diphenhydramine is a potent antimuscarinic (a competitive antagonist of muscarinic acetylcholine receptors) and, as such, at high doses can cause anticholinergic syndrome. [68] The utility of diphenhydramine as an antiparkinson agent is the result of its blocking properties on the muscarinic acetylcholine receptors in the brain.
Considerable overdosage can lead to myocardial infarction (heart attack), serious ventricular arrhythmias, coma, and death. [18] Such a side effect profile is thought to give ethanolamine-class antihistamines a relatively low abuse liability. [citation needed] An antidote that can be used for dimenhydrinate poisoning is physostigmine. [19]
Effects of anticholinergic drugs include: Delirium (often with hallucinations and delusions indistinguishable from reality); Ocular symptoms (from eye drops): mydriasis, pupil dilation, and acute angle-closure glaucoma in those with shallow anterior chamber [11] [12] [13]
A link between these types of drugs and cognitive impairment isn't a totally new discovery, but for the first time, researchers used brain imaging techniques to determine the physical changes ...
Benadryl Dry, Tickly Cough Liquid is a cough medicine found in Australia. It is used to temporarily relieve irritating coughs. Pholcodine is the main ingredient found in this cough liquid. [11] This medication is to be taken orally and may cause drowsiness. In India, Benadryl can also be found in the form of a cough liquid and also cough lozenges.
A dose–response relationship was established, with larger doses (>170 mg) showing greater increases in heart rate and faster time trials than with smaller doses (≤170 mg) (SMD = 0.85 for heart rate and SMD = -0.24 for time trials, respectively). [20]
People looking to save money for a big trip or financial investment may want to make plans around an "extra" paycheck in their pocket.. Employees who get paid on a biweekly basis (every other week ...
An FAA report found that between 2012 and 2016, diphenhydramine was the most common pharmaceutical known to cause impairment detected in post-mortem toxicology tests performed on someone who may have been in charge of the aircraft at the time of a fatal plane crash, specifically naming both Benadryl and Sominex. [65]