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Diphenhydramine, sold under the brand name Benadryl among others, is an antihistamine and sedative.It is a first-generation H 1-antihistamine and it works by blocking certain effects of histamine, which produces its antihistamine and sedative effects.
Benadryl Allergy Relief contains 8 mg of acrivastine in each capsule. It is to be taken orally. Benadryl Allergy Relief Plus Decongestant can also be found in the United Kingdom. It is used to relieve sinus, stuffy and runny nose, itchy eyes and sneezing. [9] This version contains acrivastine and pseudoephedrine as its active ingredients.
The recommended dosage of Benadryl tablets for adults is 1 to 2 tablets every 4 to 6 hours, [1] and only 1 tablet every 4 to 6 hours for children under the age of 12. [2]The Benadryl challenge is an internet challenge that emerged in 2020, revolving around the deliberate consumption, excessive use and overdose of the antihistamine medicine diphenhydramine (commonly sold in the United States ...
A faster-than-normal heart rate. Bradycardia. A slower-than-normal heartbeat. ... Valvular heart disease occurs when any of the valves in your heart are damaged. It affects about 2.5% of people in ...
The evidence does not report how antihistamines affect women differently than men. [1] Different studies have reported on antihistamine use in children, with various studies finding evidence that certain antihistamines could be used by children 2 years of age, and other drugs being safer for younger or older children.
Many sympathetic hormones and neurotransmitters are based on the phenethylamine skeleton, and function generally in "fight or flight" type responses, such as increasing heart rate, blood pressure, dilating the pupils, increased energy, drying of mucous membranes, increased sweating, and a significant number of additional effects.
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The resting heart rate of a newborn can be 120 beats per minute (bpm) and this gradually decreases until maturity and then gradually increases again with age. The adult resting heart rate ranges from 60 to 100 bpm. Exercise and fitness levels, age and basal metabolic rate can all affect the heart rate. An athlete's heart rate can be lower than ...