IN VITRO IN VIVO CORRELATION OF DEXTROMETHORPHAN HYDROBROMIDE MODIFIED RELEASE TABLETS: AN INTERNAL VALIDATION EVALUATION

Authors

  • Ramesh N Srinivas College of Pharmacy, Farengipete Post, Mangalore.Karnataka - 574143.India
  • Socorrina Colaco
  • Ramakrishna Shabaraya
  • Sekar Rajan
  • Subramania Nainar Meyyanathan

Abstract

ABSTRACT
Objectives: The purpose of this study was to develop and validate in vitro and in vivo correlation (IVIVC) for newly developed dextromethorphan
hydrobromide sustained-release (SR).
Methods: During the development of a once-daily SR tablet of dextromethorphan hydrobromide, an extrapolative in vitro drug release method was
designed and statistically evaluated using three formulations with varying release rates. The similarity factor (f2) was used to analyze the dissolution
data. Three-way crossover study design was conducted in six healthy human subjects under fasting condition.
Result: The formulations were evaluated by using area under the plasma concentration-time curve, (AUC0-∞), time to reach peak plasma concentration,
Tmax, and peak plasma concentration Cmax, while correlation was determined between in-vitro release and in-vivo absorption. A linear correlation
was observed between the absorption and dissolution profiles of the drug. The prediction error (%) was determined to check how well a given model
can accurately predict a pharmacokinetic parameter of the drug. The predicted Cmax and AUC found to be −6.98 and −8.55 and for AUC was 7.76 and
8.82% respectively.
Conclusion: In conclusion, a Level A IVIVC explaining the complete time-course of plasma concentrations was developed and validated, internally for
developed dextromethorphan hydrobromide SR formulations.
Keywords: Dextromethorphan hydrobromide, Dissolution, Bioavailability, Sustained-release, In vitro and in vivo correlation.

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Author Biography

Ramesh N, Srinivas College of Pharmacy, Farengipete Post, Mangalore.Karnataka - 574143.India

Department of Pharmaceutics

References

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Published

01-07-2015

How to Cite

N, R., S. Colaco, R. Shabaraya, S. Rajan, and S. Nainar Meyyanathan. “IN VITRO IN VIVO CORRELATION OF DEXTROMETHORPHAN HYDROBROMIDE MODIFIED RELEASE TABLETS: AN INTERNAL VALIDATION EVALUATION”. Asian Journal of Pharmaceutical and Clinical Research, vol. 8, no. 4, July 2015, pp. 79-86, https://mail.innovareacademics.in/journals/index.php/ajpcr/article/view/5619.

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