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Side Effects


When using this product

  • excitability may occur, especially in children
  • drowsiness may occur
  • avoid alcoholic beverages
  • alcohol, sedatives and tranquilizers may increase drowsiness
  • use caution when driving a motor vehicle or operating machinery

If pregnant or breast-feeding, ask a health professional before use.

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

Read the Chlor-Trimeton (chlorpheniramine maleate) Side Effects Center for a complete guide to possible side effects


No information provided.

Read the Chlor-Trimeton Drug Interactions Center for a complete guide to possible interactions

Last reviewed on RxList: 4/18/2013
This monograph has been modified to include the generic and brand name in many instances.

Side Effects

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Allergies & Asthma

Improve treatments & prevent attacks.