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Clinical data | |
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Trade names | Ambodryl, Ambrodil, Deserol |
Other names | Bromodiphenhydramine; Bromdiphenhydramine |
MedlinePlus | a682065 |
Routes of administration | Oral |
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Pharmacokinetic data | |
Bioavailability | High |
Protein binding | 96% |
Metabolism | Mostly hepatic (CYP-mediated), also renal |
Elimination half-life | 1 to 4 hours |
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ECHA InfoCard | 100.003.854 ![]() |
Chemical and physical data | |
Formula | C17H20BrNO |
Molar mass | 334.257 g·mol−1 |
3D model (JSmol) | |
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Bromazine, sold under the brand names Ambodryl, Ambrodil, and Deserol among others, also known as bromodiphenhydramine, is an antihistamine and anticholinergic medication of the ethanolamine class.[1][2][3][4][5] It is an analogue of diphenhydramine with a bromine substitution on one of the phenyl rings.[1][2]
Grignard reaction between phenylmagnesium bromide and para-bromobenzaldehyde [1122-91-4] (1) gives p-bromobenzhydrol [29334-16-5] (2). Halogenation with acetyl bromide in benzene solvent gives p-bromo-benzhydrylbromide [18066-89-2] (3). Finally, etherification with deanol completed the synthesis of Bromazine (4).
Continuous and/or cumulative use of anticholinergic medications, including first-generation antihistamines, is associated with higher risk for cognitive decline and dementia in elderly people.[8][9]
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For topical use |
mAChRsTooltip Muscarinic acetylcholine receptors |
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