Dextromethorphan Dosage Table

Dextromethorphan Dosage Table

Child's weight more than (pounds) 16 32 48 64 80 96 130 lbs
Total amount (mg) 2.5 5 7.5 10 12.5 15 20 mg
Liquid 5 mg/5 ml (tsp) ½ 1 2 3 -- tsp
Liquid 7.5 mg/5 ml (tsp) -- -- 1 1 2 3 tsp
Liquid 10 mg/5 ml (tsp) -- -- -- 1 1 2 tsp

Indication: Cough suppressant. Dextromethorphan (DM) is present in most cough syrups.

Table Notes:


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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