Quality control and drug-drug interactions between commercially available Metoprolol and Glimepiride tablets

Abstract Quality is paramount and needs to be maintained throughout the shelf life of pharmaceuticals. The current study aimed to evaluate the quality, potency, and drug-drug interaction in an in vivo animal model by using two drugs, namely, metoprolol and glimepiride. Tablets were selected for their physical characteristics, such as shape, size, and color. Quality control tests, such as weight variation, hardness, friability, and disintegration tests, and invitro drug release studies were performed as per USP. Drug-drug interaction and in vivo studies were carried out according to the standard protocol of the animal ethics committee. Quality control tests of both the tablets were within the specified range. The cumulative release percentages of the drugs were 81.12% and 85.36% for Metoprolol Tartrate and Glimepiride, respectively, in a physiological buffer solution within 1 h. The combination of metoprolol and Glimepiride also significantly decreased the blood glucose level in diabetic animals. However, the blood glucose level increased in the group receiving metoprolol only, but the difference was not significant. The result suggested that the formulations are safe. However, the chronic use of this combination requires frequent monitoring of blood glucose level to improve its efficacy and for the patient's safety.

King Vision video laryngoscope for severe post burn contracture neck: an encouraging experience / Videolaringoscópio King Vision para contratura grave do pescoço após queimadura: uma experiência encorajadora

Abstract Background and objectives Managing the airway of post burn contracture of the neck has always been challenging to anesthesiologists as it limits the alignment of oro-pharyngo-laryngeal axes because of functional and anatomical deformities that occur as a result of long standing contractures. Here the role of the King Vision video laryngoscope which is the latest in the series of video laryngoscope has been evaluated for such patients. Case report A 35 year old male patient with post burn contracture of neck was scheduled for release of the contracture. As the patient had had fixed flexion deformity of the neck we did not attempt the conventional laryngoscopy. Instead we opted for King Vision video laryngoscope. Conclusion We therefore conclude that King Vision videolaryngoscope can be used for difficult airway situations like post burn contracture of neck.

Resumo Justificativa e objetivos O manejo de vias aéreas em contratura de pescoço após queimadura sempre foi um desafio para os anestesiologistas, pois a contratura limita o alinhamento do eixo orofaringolaríngeo devido às deformidades funcionais e anatômicas que ocorrem como resultado de contraturas de longa duração. Relato de caso Paciente do sexo masculino, 35 anos de idade, com contratura do pescoço após queimadura foi programado para liberação da contratura. Como estava com deformidade fixa em flexão no pescoço, não tentamos a laringoscopia convencional e optamos por usar o videolaringoscópio King Vision. Conclusão O videolaringoscópio King Vision pode ser usado em situações de via aérea difícil como a contratura de pescoço após queimadura.

Simple scheme for identification of common species of enterobacteriaceae.

We propose a simple scheme for the identification of enterobacteriaceae species which routinely necessitates numerous biochemical tests and prolonged time span. In the scheme, family enterobacteriaceae is initially divided into four major groups depending on two important biochemical reactions viz. Lactose fermentation (L) and Methyl red test (MR). Each of the four groups, Group I (L + MR+), Group II (L + MR-), Group III (L- MR-), Group IV (L- MR+) can further be differentiated by using few tests. Eleven genera and 23 species can be identified by this scheme using limited biochemical tests. As many as 990 strains of enterobacteriaceae were subjected to standard biochemical tests and proposed simple scheme for identification. The discrepancy was observed only with 8 atypical strains of E. coli.