Drugs Home > Carbinoxamine Extended-Release Oral Suspension

Important Information for Your Healthcare Provider

You should talk with your healthcare provider prior to using this medication if you have:
Also, let your healthcare provider know if you:
Make sure to tell your healthcare provider about all other medications you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.
(Click Precautions and Warnings With Carbinoxamine Extended-Release Oral Suspension to learn more, including information on who should not use the drug.)

How Does It Work?

Carbinoxamine extended-release oral suspension is an H1 receptor antagonist, commonly referred to as an antihistamine. It works by blocking a specific type of receptor in the body known as the histamine-1 (H1) receptor. Histamine is responsible for many of the symptoms of allergic reactions. Carbinoxamine extended-release oral suspension blocks histamine receptors, preventing histamine from binding to them, and thus preventing allergy symptoms.
Carbinoxamine extended-release oral suspension also blocks acetylcholine receptors. This leads to some of the bothersome "anticholinergic" side effects, such as dry mouth, constipation, and difficulty urinating. It also helps produce a "drying" effect, which can be helpful for some allergy symptoms, such as a runny nose.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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