The document summarizes the schedules of controlled substances and categories for drug use in pregnancy. Schedule I drugs have a high abuse potential and no accepted medical use, while Schedules II-V have accepted medical uses and decreasing abuse potential. Category A drugs have not shown risk in pregnancy studies, Category B have no evidence of harm in animal studies, Category C have shown risk in animal studies but not human, Category D have shown risk in human studies but benefits may outweigh risks, and Category X are contraindicated in pregnancy due to fetal abnormalities. The document also lists common medical abbreviations.