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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.
In 1946, Benadryl was approved by the Food and Drug Administration (FDA) for prescription use. In 1982 it was approved as an over-the-counter medication. [24] Before 2007, Benadryl was marketed by Pfizer Consumer Healthcare (originally Warner–Lambert). [25] [26]
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Dose a Time to peak Half-life b Metabolism Anticholinergic Diphenhydramine: 50 mg 2–3 hours 2–9 hours CYP2D6, others Yes Doxylamine: 25 mg 2–3 hours 10–12 hours CYP2D6, others Yes Hydroxyzine: 25–100 mg 2 hours 20 hours ADH, CYP3A4, others No Doxepin: 3–6 mg 2–3 hours 17 hours c: CYP2D6, others No (at low doses) Mirtazapine: 7.5 ...
The pharmacokinetics of cetirizine have been found to increase linearly with dose across a range of 5 to 60 mg. [3] Its C max following a single dose has been found to be 257 ng/mL for 10 mg and 580 ng/mL for 20 mg. [2] Food has no effect on the bioavailability of cetirizine but has been found to delay the T max by 1.7 hours (i.e., to ...
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The Mayo Clinic diet was created by weight management practitioners at the Mayo Clinic and was designed as a lifestyle change program to promote gradual and sustained weight loss, says Melissa ...
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