← Return to 23 with near constant dizziness and lightheadedness.

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I'm glad you are doing better. A word of caution: I am horrified at the lack of knowledge in general about anticholinergic drugs - i.e. dramamine, Benadryl, Versicare, Antivert. Not only can they cause mental confusion and memory problems but there are some researchers who believe they can precipitate dementia. And, in fact, there is no doubt in my mind that countless elders are "warehoused" with "dementia" - confused due to their anticholinergic "meds" that keep them quiet and sedated. I only mention this because people thing that OTC drugs are by definition safe. They aren't always. Along with PPIS, I predict anticholinergic drugs will eventually be looked back on as some of the biggest medical mistakes/disasters of this century. And, of course, people desperate for dizziness relief are often told to take these drugs. You can search pubmed for research. Here's a fair CNN article on the subject. https://www.cnn.com/2016/04/18/health/otc-anticholinergic-drugs-dementia/index.html

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@sylnnb GOOD MORNING this is a timely information Where I live we just had a program about dementia and the antihistamines are affecting our memories this was from the Dept. of Mental Health

I have been interested in H-receptor antagonists lately and their effects on the parasympathetic nervous system. So far, as a student I am generally ignorant of anticholinergics and was unaware that these two classes of drug may be related so closely. It comes up again and again on PubMed, IUPHAR guide, and forums like this one. Acetylcholine is a widely used neurotransmitter, and I have only had the chance to study it in relation to muscle contraction. Can you explain what other roles it plays in the body? Especially pertaining to conduction pathways involving histamine.