Corpus ID: 12852184

Dextromethorphan and codeine: comparison of plasma kinetics and antitussive effects.

  title={Dextromethorphan and codeine: comparison of plasma kinetics and antitussive effects.},
  author={M. Aylward and J. Maddock and D. E. Davies and D. Protheroe and T. Leideman},
  journal={European journal of respiratory diseases},
  volume={65 4},
Plasma kinetics of dextromethorphan (as dextrorphan ) and codeine were investigated after acute oral doses in 8 patients with pathological cough; after which the patients participated in an acute dose-response study of the antitussive effects of each drug administered as syrups. Maximum plasma codeine concentrations averaged 384 (s.d. +/- 78.3) occurring between 0.75 and 2h after ingestion of 60 mg codeine phosphate; in comparison mean peak plasma dextrorphan levels were 386 (s… Expand
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