Dextromethorphan Dosage Table
|Child's weight (pounds)||30-47||48-63||64-79||80-95||96-129||130+||lbs|
|Liquid 5 mg/ 5 milliliters (mL)||5||7.5||10||12.5||15||--||mL|
|Liquid 5 mg/ 1 teaspoon (tsp)||1||1½||2||2½||3||--||tsp|
|Liquid 7.5 mg/ 5 milliliters (mL)||--||5||5||7.5||10||15||mL|
|Liquid 7.5 mg/ 1 teaspoon (tsp)||--||1||1||1½||2||3||tsp|
|Liquid 10 mg/ 5 milliliters (mL)||--||--||5||5||7.5||10||mL|
|Liquid 10 mg/ 1 teaspoon (tsp)||--||--||1||1||1½||2||tsp|
When to Use. Treatment of bad coughs. Dextromethorphan (DM) is present in most cough syrups.
- Age Limits. Don't use under 4 years of age (FDA recommendation 2008).
- Over 4 years of age, Not advised as first treatment of cough. Use honey instead.
- If under 6 years, don't give products with more than one ingredient in them (FDA recommendation 2008).
- Dose. Find the child's weight in the top row of the dose table. Look below the correct weight for the dose based on the product you have.
- Measure the Dose. Syringes and droppers are better to use than teaspoons. If possible, use the syringe or dropper that comes with the medicine. If not, you can get a med syringe at a drug store. If you use a teaspoon, it should be a measuring spoon. Reason: regular spoons are not reliable. Keep in mind 1 level teaspoon equals 5 mL and that ½ teaspoon equals 2.5 mL.
- How Often. Repeat every 6-8 hours as needed.
- Adult Dose: 20 mg.
Copyright 1994-2015 Barton D. Schmitt, M.D. All rights reserved.