From the FDA Drug Label
Directions • shake bottle well before use • measure only with dosing cup provided • do not use dosing cup with other products • dose as follows or as directed by doctor adults and children 12 years of age and over 10 mL every 12 hours, not to exceed 20 mL in 24 hours children 6 to under 12 years of age 5 mL every 12 hours, not to exceed 10 mL in 24 hours children 4 to under 6 years of age 2.5 mL every 12 hours, not to exceed 5 mL in 24 hours children under 4 years of age do not use
The recommended dose of Dextromethorphan (Robitussin DM) for an 8-year-old child with cough is 5 mL every 12 hours, not to exceed 10 mL in 24 hours 1.
From the Research
I strongly advise against giving Robitussin DM to an 8-year-old child due to the potential risks and lack of efficacy in children under 12, as suggested by studies such as 2 and 3. The recommended approach for cough relief in children should prioritize safety and efficacy.
- For children over 1 year, honey is a safer alternative, as shown in studies like 4 and 3, which demonstrated its effectiveness in alleviating cough symptoms.
- Plenty of fluids, a humidifier, and rest are also essential for managing cough symptoms in children.
- It is crucial to follow the package directions exactly for any medication, including children's versions of cough medications specifically formulated for the appropriate age group.
- The FDA and pediatricians have become more cautious about cough medications in children due to potential side effects and limited evidence of effectiveness, as highlighted in studies like 2 and 5.
- If the child's symptoms are concerning, it is best to consult a pediatrician for appropriate treatment recommendations, rather than relying on over-the-counter medications like Robitussin DM. Some studies, such as 6, have raised concerns about the abuse of dextromethorphan-based cough syrup, which further emphasizes the need for caution when considering its use in children. In terms of specific dosing instructions, it is essential to look for children's versions of cough medications and follow the package directions exactly, rather than relying on adult formulations like Robitussin DM.
- Children's Robitussin products are available with proper dosing instructions based on age and weight, but it is still important to exercise caution and consider alternative treatments like honey and other non-pharmacological interventions.