What is Chlor-Trimeton: Uses, Warnings & Interactions

What is Chlor-Trimeton: Uses, Warnings & Interactions

Updated May 14, 2025 • Published Dec 30, 2020

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Chlor-Trimeton overview

BRAND NAMES:

TopCare Allergy, Good Sense Allergy Relief, Aller-Chlor, Allergy, Allergy Relief, C.P.M. Tablets, Chlor-Phen, Chlor-Trimeton Allergy, Ed ChlorPed, ED Chlorphed Jr., ED-CHLOR-TAN, Good Neighbor Pharmacy Allergy, Pharbechlor, Sunmark Allergy, Health Mart Allergy Relief

Generic Names:

Chlorpheniramine Maleate

Uses:

Treats hay fever, allergy, and cold symptoms.

Therapeutic Classes:

Cold/Cough Agent, Respiratory Agent

Forms:

Tablet, Long Acting Tablet, Liquid, Long Acting Capsule

How it’s taken:

By mouth

What is Chlor-Trimeton used for?

What form(s) does Chlor-Trimeton come in

Tablet
Long Acting Tablet
Liquid
Long Acting Capsule

What are common Chlor-Trimeton doses?

Box 24 Tablets
Bottle 120ML of 2MG/5ML

Common Chlor-Trimeton prescriptions

Chlor-Trimeton
24 tablets box

How to take Chlor-Trimeton

Your doctor will tell you how much medicine to use. Do not use more than directed.
Follow the instructions on the medicine label if you are using this medicine without a prescription.
Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup. You might need to shake the oral liquid medicine just before measuring the dose. Follow the directions on the label.
Swallow the extended-release capsule or extended-release tablet whole. Do not crush, break, or chew it.
Swallow the extended-release capsule or extended-release tablet whole. Do not crush, break, or chew it.
Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup. You might need to shake the oral liquid medicine just before measuring the dose. Follow the directions on the label.
Your doctor will tell you how much medicine to use. Do not use more than directed.
Follow the instructions on the medicine label if you are using this medicine without a prescription.

What to do if you miss a dose of Chlor-Trimeton

If you are using this medicine on a regular schedule: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
Oral routeAsk your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
Keep all medicine out of the reach of children. Never share your medicine with anyone.

Chlor-Trimeton contraindications

You should not use this medicine if you have had an allergic reaction to chlorpheniramine. Do not give any over-the-counter (OTC) cough and cold medicine to a baby or child under 4 years old. Using these medicines in very young children might cause serious or possibly life-threatening side effects.

Chlor-Trimeton warnings

This medicine may make you drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
Make sure your doctor knows if you are pregnant or breastfeeding.
Make sure your doctor knows if you have glaucoma, problems with urination, an enlarged prostate, kidney disease, an ulcer or other digestion problem, or a breathing problem such as chronic bronchitis, asthma, or emphysema.
Do not give this medicine to a child under 6 years old unless the child's doctor says it is okay.

Chlor-Trimeton interactions

Tell your doctor if you use anything else that makes you sleepy. Some examples are allergy medicine, narcotic pain medicine, and alcohol.
Do not drink alcohol while you are using this medicine.
This medicine may make you drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
Do not give this medicine to a child under 6 years old unless the child's doctor says it is okay.

Chlor-Trimeton side effects

Serious Side Effects

Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Severe tiredness.
Dry mouth.

Less Serious Side Effects

Nausea, loss of appetite.
Increased energy, restlessness, nervousness (more common in children).
Dry mouth.