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Dextromethorphan for cough suppression

Dextromethorphan (DM) Dosage (Cough Suppressant)

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) 1/2 1 1 1/2 2 2 1/2 3 - tsp
Liquid 7.5 mg/5 ml (tsp) - - 1 1 1 1/2 2 3 tsp
Liquid 10 mg/5 ml (tsp) - - - 1 1 1 1/2 2 tsp
    Note:
  • Dextromethorphan Dosage: determine by finding your child's weight in the top row of the dosage table. DM is present in most cough syrups.
  • Adult dose: 20 mg.
  • Repeat every 6-8 hours as needed.
  • Don't use under 1 year of age (reason: cough is a protective reflex).

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