Vitamin B6, Drug Exposure

This medication concept set includes pyridoxine (B6) and all of its descendants. Combinations are included. It was developed by taking the RxNorm descendants of 19005046 (pyridoxine), 42903728 (pyridoxine dipalmitate), 19059817 (pyridoxal), and 1353228 (vitamin B6) and excluding the search terms "cream", "ointment", "buccal", "topical". 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 formulations of pyridoxine (B6). This concept set contains only RxNorm and RxNorm Extension codes.