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Chlor-Trimeton Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Chlor-Trimeton (Chlorpheniramine Maleate) is used to treat sneezing, itching, watery eyes, and runny nose caused by allergies or the common cold. Chlor-Trimeton belongs to the antihistamine drug class. It is available in generic form. Common side effects include drowsiness, mild dizziness, blurred vision, dry mouth, nausea, stomach pain, constipation, problems with memory or concentration, or restlessness or excitability (especially in children).
Dose for Chlor-Trimeton for adults and children 12 years of age and older: One tablet every 4 to 6 hours, not to exceed 6 tablets in 24 hours or as directed by a physician. Children 6 through 11 years: Half the adult dose every 4 to 6 hours, not to exceed 3 whole tablets in 24 hours. Children under 6: Consult a doctor. Some medications may interact with Chlor-Trimeton, including antidepressants, diuretics (water pills), glycopyrrolate, mepenzolate, aspirin or salicylates, atropine, belladonna, benztropine, dimenhydrinate, methscopolamine, scopolamine, bronchodilators, MAO inhibitors, bladder or urinary medications, or irritable bowel medications. Tell your doctor all drugs you are taking. Chlor-Trimeton is not expected to be harmful to a fetus. Tell your doctor if you are pregnant or plan to become pregnant during treatment. Chlor-Trimeton can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding.
Our Chlor-Trimeton Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Chlor-Trimeton in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop taking chlorpheniramine and call your doctor at once if you have a serious side effect such as:
- urinating less than usual or not at all;
- confusion, extreme drowsiness;
- severe dizziness, anxiety, restless feeling, nervousness; or
- weak or shallow breathing.
Less serious side effects may include:
- mild dizziness, drowsiness;
- blurred vision;
- dry mouth;
- nausea, stomach pain, constipation;
- problems with memory or concentration; or
- feeling restless or excited (especially in children).
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Chlor-Trimeton (Chlorpheniramine Maleate) »
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Chlor-Trimeton FDA Prescribing Information: 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 entire FDA prescribing information for Chlor-Trimeton (Chlorpheniramine Maleate) »
Additional Chlor-Trimeton Information
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.
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