| 摘要 |
Novel piperidine derivatives of the formula <FORM:1102357/C2/1> wherein R1 represents a C1- 4 alkyl radical, R2 represents a C1- 4 alkyl radical or a phenyl radical and R3 represents hydrogen or a C1- 3 alkanoyl radical and their salts are obtained by reducing the corresponding ketone and, if desired, converting the compound obtained into a salt with an inorganic or organic acid. Therapeutic compositions having antitussive and analgetic properties contain as active ingredient at least one of the above piperidine derivatives or a pharmaceutically acceptable salt with an inorganic or organic acid. The antitussive composition may be in a form suitable for oral or parenteral application.
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