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Ketotifen is an antihistamine medication and a mast cell stabilizer used to treat allergic conditions such as conjunctivitis, asthma, and urticaria (hives).Ketotifen is available in ophthalmic (eye drops or drug-eluting contact lenses) and oral (tablets or syrup) forms: the ophthalmic form relieves eye itchiness and irritation associated with seasonal allergies, while the oral form helps ...
Norketotifen is a pharmaceutical medication which is not yet approved for use and is undergoing clinical trials. It is a biologically active demethylated metabolite of ketotifen and has a similar potency as ketotifen as an antihistamine H 1 medication and a mast cell stabilizer, yet is devoid of severe sedative effects of ketotifen, potentially allowing for higher doses to be administered ...
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 ...
Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. [1] Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion, sneezing, or hives caused by pollen, dust mites, or animal allergy with few side effects. [1]
10-Hydroxyketotifen (WR621365) [1] is a biologically inactive metabolite of ketotifen. [2] [3] [4] Despite the mainstream scientific consensus that 10-hydroxyketotifen is a biologically inactive compound, its pharmacological properties are not very well studied outside the context of ketotifen, therefore, 10-hydroxyketotifen may still possess biological activity similarly to norketotifen ...
[2] [5] Some drugs that have been successfully loaded via this method are: timolol, norfloxacin, ketotifen, polyvinlypyrrolidone, and hyaluronic acid. [5] [11] [12] The molecular structures of each of these drugs are shown below in the index of important scientific terminology.
Cyproheptadine has been reported to block 85% of 5-HT 2 receptors in the human brain at a dose of 4 mg three times per day (12 mg/day total) and to block 95% of 5-HT 2 receptors in the human brain at a dose of 6 mg three times per day (18 mg/day total) as measured with positron emission tomography (PET). [32]
A drug is considered highly soluble when the highest dose strength is soluble in 250 ml or less of aqueous media over the pH range of 1 to 6.8. The volume estimate of 250 ml is derived from typical bioequivalence study protocols that prescribe administration of a drug product to fasting human volunteers with a glass of water.