Abstract: A method for a pimavanserin solid preparation. The method improves the fluidity of pimavanserin powder during preparation, can improve the stability of the content of an active ingredient in the solid preparation, and has the characteristics of rapid dissolution and release and good compression moldability.

Abstract: The present invention discloses a pharmaceutical composition that includes rivaroxaban and one or more excipient in a solid dosage form and methods for making the same. Methods for making compositions of the present invention includes powderizing rivaroxaban by centrifugal wet granulation to form compositions suitable for solid oral dosage form. Pharmaceutical dosage forms produced by methods of the present invention are more homogenous, smoother, and have better rheological properties, better compressibility, and much easier to make. They are much lower in cost and also easier to produce at industrial scales.