II. Efficacy
- As effective as Codeine for Cough Suppression
- But no more effective than Placebo in children
III. Preparations
- Common component in Cold Preparations for Cough Suppression (e.g. Robitussin, Coricidin)
IV. Dosing
- Dextromethorphan (DM): 0.5 mg/kg up to 30 mg PO tid-qid
-
Robitussin DM (15 mg/tsp)
- Adult: 2 tsp (10 ml) q4h
- Age 6 to 12 years: 1 tsp (5 ml) q4h
- Age 2 to 6 years: 1/2 tsp (2.5 ml) q4h
V. Adverse effects
- Abuse potential (esp. in teens)
- Other (rare)
- Lethargy, stupor or coma
- Hyperexcitability
- Abnormal limb movements
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