Here is a list of detailed resources to explore this topic more in-depth:
ASPEN Safe Practices for Enteral Nutrition Therapy 2017NEEMMC Guidelines for Tablet crushing and administration via enteral feeding tubesOral Dosage Forms That Should Not Be CrushedHandbook of Drug Administration via Enteral FeedingLexicomp – UNMC linkDrug Administration Through an Enteral Feeding Tube: the rationale behind the guidelines