Buffered lidocaine stability
Abstract: The stability of 20 mg/mL lidocaine hydrochloride injection in 12-mL polypropylene syringes stored at ambient temperature and at 4°C for up to 90 days was investigated. A highperformance liquid chromatographic stability-indicating assay was used to determine the concentration level of lidocaine hydrochloride injection at 0, 1, 4, 7