Compared with the prior art, the difference between the protected pharmaceutical composition preparation and the common dosage form lies only in the change of the dosage form, and its effect superior to the prior art is inherent in the dosage form itself. It is not technically difficult for technicians in the field to prepare the preparation, so the pharmaceutical composition preparation is obvious and not creative.
The change of the same patented process of the preparation did not substantially change the internal properties of the preparation, nor did it bring new technical characteristics or advantages to the preparation.