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Different preparation and processing methods of raw materials may lead to changes in the final crystal habit or even the crystal form, which in turn will cause differences in the physicochemical properties, biological properties and production controllability of the drug. For the study of drug crystal forms, the drug regulatory authorities of various countries have […]

Dry granulation is a method in which drugs and excipient powders are evenly mixed, extruded under a certain pressure into lumps and flakes with a certain hardness, and then passed through a sieve to make granules. This method relies on compressive force to generate binding force between particles. If necessary, dry binder can be added

Nucleic acid drugs, also known as nucleotide drugs, mainly work at the gene level. Nucleic acid drugs can directly act on the molecules that cause diseases, and relieve the symptoms of diseases by regulating body functions without manipulating the genome, and have shown unique effects in anti-virus, anti-tumor, and anti-metabolic disorders.   At present, there