Publications by authors named "Srinath Muppalaneni"

The purpose of this study was to determine the effects of thermal processing and antioxidant formulation variables on the abuse deterrence performance of a high molecular weight poly(ethylene oxide) (PEO) polymer. A 2 factorial design with one categorical factor (antioxidant type) and three continuous factors (curing time, curing temperature, % antioxidant) was used. Abuse deterrence performance was evaluated using solution viscosity, surface melting temperature, and mechanical strength.

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Objective: This study aimed to determine whether selected superabsorbent polymers (SAPs) could be used as a suitable alternative to thwart extraction, filtration, and syringeability attempts for abuse. Many abuse-deterrent formulations (ADFs) rely on high molecular weight polymers such as poly(ethylene oxide) to provide crush and extraction resistance. However, these polymers suffer from slow dissolution kinetics, and are susceptible to a variety of abuse conditions.

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Objectives: This study was conducted to evaluate suitable methods of testing crush-resistant tablets composed largely of thermoplastic polymers. The objectives were, i) to evaluate the effect of thermal processes on crush resistance, ii) to develop test method(s) to indicate whether a crush-resistant tablet is susceptible to tampering by insufflation based on generated particle sizes, and iii) to find an appropriate analytical tool for discriminatory studies.

Methods: We investigated the crush-resistance properties of poly(ethylene oxide) (PEO) tablets using three manual and four electrical devices.

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