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| Clinical data | |
|---|---|
| Trade names | Chlor-trimeton, Polaramine | 
| AHFS/Drugs.com | Monograph | 
| MedlinePlus | a682543 | 
| Routes of administration | Oral, Intravenous | 
| ATC code | |
| Legal status | |
| Legal status | 
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| Pharmacokinetic data | |
| Elimination half-life | 21 to 27 hours | 
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| CAS Number | |
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| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.042.779 | 
| Chemical and physical data | |
| Formula | C16H19ClN2 | 
| Molar mass | 274.79 g·mol−1 | 
| 3D model (JSmol) | |
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Dexchlorpheniramine (trade name Polaramine) is an antihistamine with anticholinergic properties used to treat allergic conditions such as hay fever or urticaria. [1] [2] It is the pharmacologically active dextrorotatory isomer of chlorpheniramine.
It came into medical use in 1959 and was patented in 1962. [3]
Dexchlorpheniramine is an antihistamine, or an antagonist of the histamine H1 receptor. A study found that dexchlorpheniramine had a Ki value of 20 to 30 μM for the muscarinic acetylcholine receptors using rat brain tissue. [4]