2.2. Extraction of drugs from commercial tablets
Norethindrone acetate and dydrogesterone were extracted from commercially available tablets. Norethindrone acetate was extracted from five regestrone tablets (batch No. R67B05D) of Novartis India Limited, Mahad, (Maharashtra), India. Similarly, dydrogesterone was extracted from five Duphastone formulation (batch No. L7301) of Solvay Pharma India Limited, Mumbai, India. Five tablets of each drug were weighed and crushed to powder separately, respectively. The powdered tablets were extracted with methanol (100 mL), separately, by heating at 80 °C. The drug mixture was centrifuged and supernatant was separated. The residue was extracted two more times with the same amount of methanol separately. All methanol fractions were combined together to get 300 mL. This methanol was evaporated under vacuum on water bath to 15 mL, which was allowed to crystallize in freeze at 10 °C. The mother liquor was decanted and the crystals were washed with a little amount of n-hexane. The purity of the drugs was ascertained by melting point, UV and IR spectra.
2.2. Extraction of drugs from commercial tabletsNorethindrone acetate and dydrogesterone were extracted from commercially available tablets. Norethindrone acetate was extracted from five regestrone tablets (batch No. R67B05D) of Novartis India Limited, Mahad, (Maharashtra), India. Similarly, dydrogesterone was extracted from five Duphastone formulation (batch No. L7301) of Solvay Pharma India Limited, Mumbai, India. Five tablets of each drug were weighed and crushed to powder separately, respectively. The powdered tablets were extracted with methanol (100 mL), separately, by heating at 80 °C. The drug mixture was centrifuged and supernatant was separated. The residue was extracted two more times with the same amount of methanol separately. All methanol fractions were combined together to get 300 mL. This methanol was evaporated under vacuum on water bath to 15 mL, which was allowed to crystallize in freeze at 10 °C. The mother liquor was decanted and the crystals were washed with a little amount of n-hexane. The purity of the drugs was ascertained by melting point, UV and IR spectra.
การแปล กรุณารอสักครู่..
