STABILITY-INDICATING RP-HPLC METHOD FOR CONCURRENT ESTIMATION OF LAMIVUDINE, TENOFOVIR DISOPROXIL FUMARATE, AND EFAVIRENZ IN BULK AND PHARMACEUTICAL DOSAGE FORM Authors: Kondaveti LS , GORAVALI KK, MORLA SP, PRACHET P AND NADENDLA RR
ABSTRACT
The main aspiration of this research work is to assess and validate the Lamivudine, tenofovir
disoproxil fumarate and efavirenz in bulk and marketed formulation. The exploration was
carried out by using Hypersil BDS column, (150×4.6mm, particle size 5?) and PDA detector
at 258nm. The mobile phase containing Methanol:0.1%TFA: acetonitrile(30:40:30v/v) in
isocratic mode pumped into a column at a flow rate 0.8mL/min. The method was validated
according to ICH Q2(R1) guidelines. The linearity was perceived in the range of 10-50?g/mL
for lamivudine, tenofovir disoproxil fumarate and 20-100?g/mL for efavirenz. The method
was accurate with % recovery of 100.41%, 99.69% and 99.75% for Lamivudine, Tenofovir disoproxil fumarate and Efavirenz respectively. The percentage relative standard deviation
was NMT 2, indicating that it was precise and robust. Under stress instances, execution of
forced degradation studies such as acidic (0.1N HCL), Basic (0.1N NaOH), oxidative
(3%H2O2), Photolytic (95%RH) and thermal (800C). The extent of degradation was
accomplished within the acceptable limits i.e., 5-20%. The acquired method was precise,
accurate and can be utilized for the estimation of lamivudine, tenofovir disoproxil fumarate
and efavirenz in bulk and tablet dosage form.
Keywords: Lamivudine, Tenofovir disoproxil fumarate, Efavirenz, HPLC, Forced
degradation studies Publication date: 01/09/2023 https://ijbpas.com/pdf/2023/September/MS_IJBPAS_2023_7394.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2023/12.9.7394