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    Eur J Clin Pharmacol. 1979;16(6):393-7.

    Comparison of the antitussive effects of codeine phosphate 20 mg, dextromethorphan 30 mg and noscapine 30 mg using citric acid-induced cough in normal subjects.

    Abstract

    1. Protection by codeine 20 mg, dextromethorphan 30 mg, noscapine 30 mg, and placebo against citric acid-induced cough was determined in eighteen healthy subjects. 2. Drug differences occurred at 2 1/2 h following ingestion of the drugs but not at 1 1/4 h. 3. Only coideine 20 mg had a greater antitussive action than placebo, but dextromethorphan 30 mg also did not differ from codeine 20 mg. 4. This technique may offer a useful screening test for the activity of new potential antitussive compounds in man.

    PMID:
    527635
    [PubMed - indexed for MEDLINE]

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