The stability of Cefuroxime axetil in tablets.

The stability of cefuroxime axetil in BIORACEF tablets was studied by means of long term (298 K/60% RH), intermediate (303 K/65% RH), accelerated (313 K/75% RH) and stress stability tests. Changes in the concentration of cefuroxime axetil diastereoisomers A and B and their total was determined using the RP-HPLC method, as described in a monograph of Cefuroxime axetil tablets in the British Pharmacopoeia 2003. After 2 years of storage under long term, 1 year under intermediate and 6 months under accelerated storage conditions, the preparation of BIORACEF meets the quality requirements as regards both.

Kinetics of degradation of cefetamet pivaloyloxymethyl ester and its hydrochloride in solid phase.

The influence of temperature and relative humidity on the stability of cefetamet pivoxil (CFP) and its hydrochloride (CFP.HCl) in solid phase was investigated. The process of degradation was studied using HPLC with UV detection.