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Meclizine was patented in 1951 and came into medical use in 1953. [5] It is available as a generic medication and often over the counter. [3] [6] In 2022, it was the 129th most commonly prescribed medication in the United States, with more than 4 million prescriptions. [7] [8]
Cyclizine, sold under a number of brand names, is a medication used to treat and prevent nausea, vomiting and dizziness due to motion sickness or vertigo. [2] It may also be used for nausea after general anaesthesia or that which developed from opioid use. [2] [3] It is taken by mouth, in the rectum, or injected into a vein. [3] [4]
Some drugs may be legally classified as over-the-counter (i.e. no prescription is required), but may only be dispensed by a pharmacist after an assessment of the patient's needs or the provision of patient education. Regulations detailing the establishments where drugs may be sold, who is authorized to dispense them, and whether a prescription ...
Some experts are averse to over-the-counter antidepressants because the evidence for their effectiveness is weak compared to prescription medications and active ingredients vary among brands and ...
Costco has a huge selection of over-the-counter medicine, including Kirkland-brand allergy pills that are a fraction of the cost of competitors' prices. Kirkland Signature Aller-Fex costs $33.49 ...
Normally, histamine acts on H 2 to stimulate acid secretion; drugs that inhibit H 2 signaling thus reduce the secretion of gastric acid. H 2-antihistamines are among first-line therapy to treat gastrointestinal conditions including peptic ulcers and gastroesophageal reflux disease. Some formulations are available over the counter.
Another effective treatment is over-the-counter antihistamines — typically used to treat allergies — like dimenhydrinate or meclizine. These should be taken 30 minutes to an hour before travel.
H 1 antagonists, also called H 1 blockers, are a class of medications that block the action of histamine at the H 1 receptor, helping to relieve allergic reactions.Agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines; other agents may have antihistaminergic action but are not true antihistamines.