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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

CHLORPHENIRAMINE vs CHLORZOXAZONE: Which Drug Is Safer?

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CHLORPHENIRAMINE vs CHLORZOXAZONE: Safety Overview

Metric CHLORPHENIRAMINE CHLORZOXAZONE
Total FAERS Reports 1,919 426
Deaths Reported 607 52
Death Rate 31.6% 12.2%
Hospitalizations 663 126
Average Patient Age 44.1 yrs 55.1 yrs
% Female Patients 48.1% 75.8%
FDA Approval Date Approved Prior to Jan 1, 1982 Approved Prior to Jan 1, 1982
Manufacturer ACTIPHARMA, LLC Proficient Rx LP
Route ORAL ORAL
Marketing Status Discontinued Discontinued