2 doctors weighed in:

Is promethazine dm equivilant to codine cough syrup?

2 doctors weighed in
1 doctor agrees

In brief: Not equivalent

but dextromethorphan in adequate dosage has cough suppressant activity equivalent to codeine.

In brief: Not equivalent

but dextromethorphan in adequate dosage has cough suppressant activity equivalent to codeine.
Dr. Robert Uyeda
Dr. Robert Uyeda
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