Citrate, Drug Exposure

This medication concept set includes the ingredients trisodium citrate, sodium citrate, and potassium citrate, and all of their descendants. Combinations are included. It was developed by taking the RxNorm descendants of 19065826 (trisodium citrate), 977968 (sodium citrate), and 976545 (potassium citrate) and excluding the search terms "cream", "ointment", "buccal", "topical", "duralock", "ophthalmic", "glucose", "dextromethorphan", "injectable". This concept set was intended to investigate medication usage of patients with primary hyperoxaluria (PH) before and after diagnosis of PH, specifically for management of kidney stones. It was intended to contain non-topical and non-IV formulations of trisodium citrate, sodium citrate, and potassium citrate. This concept set contains only RxNorm and RxNorm Extension codes.