May 2011

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About Author: Deepali Jaybhaye, Sushilkumar Varma, Amol Gite
Department of Pharmacology, Mahatma Gandhi Mission Hospital,
Aurangabad, Maharashtra – 431001, India.
Vijay Bonde
Department of Pharmacology, Mahatma Gandhi Institute of Medical Sciences,
Sewagram, Wardha, Maharashtra – 402102, India.

Reference ID: PHARMATUTOR-ART-1052

Abstract
Tectona Grandis linn. is one of the well known Indian herbs. In Ayurveda Tectona grandis stem extract has tocolytic effect. The main syndrome of preterm birth is caused by uterus contractions from excitatory factors. Administration of tocolytic agents is a strategy to prevent the occurrence of preterm births. The aim of this study was to investigate the effects of Tectona grandis stem extract on the contractions of uterine strips isolated from non?pregnant female Wistar rats (250~350 g) prior injected (Before 24 Hrs) Estradiol benzoate. Contractions of the uterus were induced with Oxytocin 0.01 IU. The results compared with stander drugs like Magnesium Sulfate (75 mg), Nifedipine (0.18 mg), and Isoxsuprine (0.18 mg) along with their effect on frog blood vessels, rat and frog heart, skeletal muscle. After seeing these effects we conclude that Tectona grandis stem extract possess the same tocolytic effect as that of standard drugs.

About Author: Imran A. Kayyum. Tadwee1*, Sadhana Shahi1, Mahesh Thube1
Government College of Pharmacy,
Aurangabad, Maharashtra, India

Reference ID: PHARMATUTOR-ART-1051

Abstract
The object of this work is to formulate & observe the effect of HPMC K15 polymer on various parameters of evaluation of carbamazepine nasal mucoadhesive microspheres. The microspheres are prepared by spray drying technique with different formulation composition of HPMC K15. The microspheres obtained are meant for the evaluation for its production yield, particle size, swelling ability, Drug content, encapsulation efficiency and Invitro drug release study. IR, TLC study is performed for drug Polymer interaction study of the optimized batch. Morphology is studied be SEM. The results obtain shows that the release rate of the drug decreases and particle size, production yield, swelling index, encapsulation efficiency, mucoadhesion is increases with increase in drug: polymer ratio. TLC study shows no interaction of Carbamazepine and HPMC. SEM study reveals the encapsulation of drug in the HPMC K15 Polymer. The data obtained after Invitro release study fitted to PCP disso software for mechanism of release & kinetic model. The data also treated with design expert software v 7.1 it shows the model is significant. Overall it shows that the polymer HPMC does not posses any interaction with the carbamazepine and showing controlled drug release behavior.