WikiDrug / Allergy / Chlorpheniramine

Chlorpheniramine tablets for allergy relief

Overview

This medicine contains chlorpheniramine maleate, an antihistamine used to temporarily relieve allergy symptoms such as sneezing, itchy and watery eyes, runny nose, and itching of the nose or throat. It is available as 4 mg oral tablets produced by CVS Pharmacy and its partners.

What is it used for?

CVS 44-194 is used to temporarily relieve symptoms caused by hay fever or other upper respiratory allergies, including:

  • Sneezing
  • Itchy, watery eyes
  • Runny nose
  • Itching of the nose or throat

It is intended for use in adults and children 6 years and older, with specific dosing limits.

Active ingredients

Chlorpheniramine maleate 4 mg

How it works

Chlorpheniramine is an antihistamine that works by blocking histamine H1 receptors in the body. Histamine is a chemical released during allergic reactions that causes symptoms like sneezing and itching. By blocking these receptors, chlorpheniramine reduces these allergic symptoms.

Dosage and administration

Dosage Instructions

Adults and children 12 years and over: Take 1 tablet every 4 to 6 hours. Do not exceed 6 tablets in 24 hours.

Children 6 to under 12 years: Take 1/2 tablet every 4 to 6 hours (tablet can be broken in half). Do not exceed 3 whole tablets in 24 hours.

Children under 6 years: Do not use.

Contraindications

Do not use to make a child sleepy. Not recommended for children under 6 years of age.

Warnings and precautions

Important Warnings and Precautions

  • Not to be used to make children sleepy.
  • May cause drowsiness; avoid alcohol and do not use with sedatives or tranquilizers unless advised by a doctor.
  • Use caution when driving or operating machinery due to possible drowsiness.
  • Excitability may occur, especially in children.
  • Consult a doctor before use if you have breathing problems such as emphysema or chronic bronchitis, difficulty urinating due to enlarged prostate, or glaucoma.
  • If overdose is suspected, seek medical help or contact a Poison Control Center immediately.

Side effects

Side Effects

Common: Drowsiness and excitability (especially in children).

Drug interactions

Use caution if taking sedatives or tranquilizers, as they may increase drowsiness when combined with this medicine. Avoid alcoholic beverages while taking this product.

Pregnancy and breastfeeding

If pregnant or breastfeeding, consult a health professional before use.

Overdose information

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

Storage

Store at 25°C (77°F); allowed temperature excursions between 15°-30°C (59°-86°F). Protect from excessive moisture. Check expiration date and lot number on packaging.

Manufacturer(s)

Medical references

  • U.S. National Library of Medicine – DailyMed
  • Official prescribing information
  • Other authoritative medical references, where applicable

References are used to support the medical information presented on this page.

Medical information disclaimer

The information on WikiDrug is provided for educational and informational purposes only. It is not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making decisions about medication use.

Last updated November 5, 2026