Gamma d-crystalline form of ivabradine hydrochloride (I), which is characterized by powder X-ray diffraction diagram measured using a PANalytical X'Pert Pro diffractometer together with an X'Celerator detector and expressed in terms of ray position (Bragg's angle 2 theta, expressed in degrees), ray height (expressed in counts), ray area (expressed in countsx degrees), full width at half maximum (FWHM, expressed in degrees) and interplanar distance d (expressed in Å ), according to the given specification, is new. An independent claim is included for the preparation of (I). [Image] ACTIVITY : Antiarrhythmic； Cardiant； Vasotropic； Antianginal. MECHANISM OF ACTION : None given.
