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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.

Does CHLORPHENIRAMINE Cause Somnolence? 147 Reports in FDA Database

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According to the FDA Adverse Event Reporting System (FAERS), 147 reports of Somnolence have been filed in association with CHLORPHENIRAMINE (ACTIDOM DA). This represents 7.7% of all adverse event reports for CHLORPHENIRAMINE.

147
Reports of Somnolence with CHLORPHENIRAMINE
7.7%
of all CHLORPHENIRAMINE reports
56
Deaths
69
Hospitalizations

How Dangerous Is Somnolence From CHLORPHENIRAMINE?

Of the 147 reports, 56 (38.1%) resulted in death, 69 (46.9%) required hospitalization, and 56 (38.1%) were considered life-threatening.

Is Somnolence Listed in the Official Label?

Yes, Somnolence is listed as a known adverse reaction in the official FDA drug label for CHLORPHENIRAMINE.

What Other Side Effects Does CHLORPHENIRAMINE Cause?

Toxicity to various agents (286) Off label use (189) Drug abuse (179) Drug ineffective (167) Dyspnoea (148) Vomiting (146) Drug hypersensitivity (126)