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Diphenhydramine, while traditionally known as an antagonist, acts primarily as an inverse agonist of the histamine H 1 receptor. [86] It is a member of the ethanolamine class of antihistaminergic agents. [45] By reversing the effects of histamine on the capillaries, it can reduce the intensity of allergic symptoms.
Benadryl Allergy. Benadryl Allergy is the name of a Benadryl product found in the United States and Canada. It is an antihistamine drug used to relieve allergies. Its active ingredient is diphenhydramine, a first-generation antihistamine. It is known to be sedative, making drowsiness a common side effect.
Sominex is the trademarked name for several over the counter sleep aids. Different formulations of Sominex are available, depending upon the market. Both the US and UK formulations contain a significant dose of a first generation antihistamine with hypnotic properties. In the United States, Sominex is marketed by Prestige Brands, [1] sometimes ...
Cetirizine. Cetirizine is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives). [5] It is taken by mouth. [6] Effects generally begin within thirty minutes and last for about a day. [6]
A study published in the American Journal of Psychiatry in September 2024 alarmingly found that high dose prescription amphetamines — which are stimulants and a first-line treatment for ADHD ...
Drugs Indication Common side effect Imipramine: Nocturnal enuresis for children above six years old; Severe depression; Antihistamine side effects like sedation, weight gain; Anticholinergic side effects like blurred vision, dry mouth, constipation; Clomipramine [19] Depressive illness; Phobic and obsessional states
Hydroxyzine works by blocking the effects of histamine. [9] It is a first-generation antihistamine in the piperazine family of chemicals. [8] [4] Common side effects include sleepiness, headache, and dry mouth. [8] [9] Serious side effects may include QT prolongation. [9] It is unclear if use during pregnancy or breastfeeding is safe. [8]
Diazepam. Diazepam, sold under the brand name Valium among others, is a medicine of the benzodiazepine family that acts as an anxiolytic. [14] It is used to treat a range of conditions, including anxiety, seizures, alcohol withdrawal syndrome, muscle spasms, insomnia, and restless legs syndrome. [14]