Chlorpheniramine Dosage Table

Chlorpheniramine Dosage Table
Child's weight more than (pounds) 22 33 44 55 66 77 88 lbs.
Total amount (mg) 1 1½ 2 2½ 3 3½ 4 mg
Liquid 2 mg/5 ml (tsp) ½ ¾ 1 1 1½ 1½ 2 tsp
Tablets 4 mg. -- -- ½ ½ ½ 1 1 tablets

Indications: For allergic reactions, nasal allergies, hives and itching.

Table Notes:

  • AGE LIMIT: For allergies, don't use under 1 year of age (Reason: it's a sedative).For colds, not recommended at any age (Reason: no proven benefits) and should be avoided if under 4 years old. Avoid multi-ingredient products in children under 6 years of age (Reason: FDA recommendations 10/2008).
  • DOSAGE: Determine by finding your child's weight in the top row of the dosage table.
  • ADULT DOSAGE: 4 mg. Repeat every 6-8 hours as needed.
  • 6-12 years DOSAGE: 8 mg long acting tablet every 12 hours as needed.
  • 12 years and older DOSAGE: 12 mg long acting tablet every 12 hours as needed.

  • Brompheniramine dosage is the same as chlorpheniramine dosage.

Author and Senior Reviewer: Barton D. Schmitt, M.D.

Content Set: Pediatric HouseCalls Online

Pediatric HouseCalls Online

Is Your Child Sick?

Pediatric HouseCalls Online is a guide for treating your child at home, calling your child's doctor or seeking immediate medical attention. Developed by Dr. Barton Schmitt, MD, FAAP, a board-certified pediatrician on staff at The Children’s Hospital. Dr. Schmitt has developed health tools for parents, including Pediatric HouseCalls Online, the Parent Advice Line and his 3rd edition of Your Child’s Health, which is available in bookstores.

Are You Sick?

David A Thompson, MD is the author of Adult HouseCalls Online. He is a board-certified emergency medicine physician at MacNeal Hospital in Chicago. He has a national reputation in telephone triage, decision support tools, medical information technology and quality improvement. Adult HouseCalls Online is a decision support tool for adults that has been reviewed and approved by adult physicians.

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