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Pheniramine (trade name Avil among others) is an antihistamine with anticholinergic properties used to treat allergic conditions such as hay fever or urticaria. It has relatively strong sedative effects, and may sometimes be used off-label as an over-the-counter sleeping pill in a similar manner to other sedating antihistamines such as ...
According to a study of 5,743 former users conducted by a plaintiff's expert cardiologist, damage to the heart valve continued long after stopping the medication. [25] Of the users tested, 20% of women, and 12% of men were affected. For all ex-users, there was a 7-fold increase of chances of needing surgery for faulty heart valves caused by the ...
Oral administration: In adults, 25 mg can be taken 3 to 4 times daily (up to 150 mg); in children over 5 years old, 25 mg can be taken 2 to 3 times daily. For external application, the skin or the eye conjunctiva can be treated up to several times a day by applying a thin layer of cream or ointment containing 1% chloropyramine hydrochloride.
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: 7.5–15 mg 2 hours 20–40 hours CYP2D6, others No Quetiapine e: 25–200 mg 1.5 ...
[2] [4] [3] It is unclear if use in pregnancy is safe. [1] Nephazoline works by resulting in constriction of blood vessels thus decreasing redness while pheniramine works by blocking the effects of histamine to stop itching. [1] The combination was approved for medical use in the United States in 1994. [5] [6] [1] It is available over the counter.
Weight loss in those receiving the fen-phen combination was significantly greater (8.4±1.1 kg) than in those receiving placebo (4.4±0.9 kg) and equivalent to that of those receiving fenfluramine (7.5±1.2 kg) or phentermine alone (10.0±1.2 kg). This amounts to an additional weight loss of 4±2 kg over the course of 24 weeks.
Mepyramine rapidly permeates the brain, often causing drowsiness. [2] It is often sold as a maleate salt, pyrilamine maleate . The medication has negligible anticholinergic activity, with 130,000-fold selectivity for the histamine H 1 receptor over the muscarinic acetylcholine receptors (for comparison, diphenhydramine had 20-fold selectivity ...
Rupatadine is a second generation, non-sedating, long-acting histamine antagonist with selective peripheral H 1 receptor antagonist activity. It further blocks the receptors of the platelet-activating factor (PAF) according to in vitro and in vivo studies.