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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. [69] The utility of diphenhydramine as an antiparkinson agent is the result of its blocking properties on the muscarinic acetylcholine receptors in the brain.
[4] [5] [2] Symptoms in mild cases include high blood pressure and a fast heart rate; usually without a fever. [2] Symptoms in moderate cases include high body temperature, agitation, increased reflexes, tremor, sweating, dilated pupils, and diarrhea. [1] [2] In severe cases, body temperature can increase to greater than 41.1 °C (106.0 °F). [2]
Organs that receive innervations from these systems include exocrine glands, heart, eyes, gastrointestinal tract etc. Antimuscarinic and antinicotinic agents can increase heart rate, inhibit secretions, and gastrointestinal motility. [1] [2] Naturally occurring antimuscarinics were found in alkaloids from Belladonna (Solanaceae) plants. They ...
Those are times to seek out help because it may not be a reflection of your resting heart rate, but an abnormal heart rhythm that should get evaluated.” Having a pulse over 100 bpm is called ...
Taking minoxidil with the following medications may lower blood pressure and cause changes in your heart rate: Diphenhydramine (Benadryl) Bupropion (Wellbutrin)
However, oftentimes lower heart rates can be totally normal, and a well-trained athlete can have a normal heart rate in the 50s or as low as 40 without any cause for concern, he notes.
Tachycardia, also called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. [1] In general, a resting heart rate over 100 beats per minute is accepted as tachycardia in adults. [1] Heart rates above the resting rate may be normal (such as with exercise) or abnormal (such as with electrical problems within the heart).
Here's More Evidence That Common Drugs May Cause Cognition Issues If you've ever popped a Benadryl or two to sleep through a long flight (or even just a regular night), you can pretty much count ...