Y Padma

A simple, accurate, precise, specific, sensitive, reproducible and Reliable RP- HPLC Method was developed for Quantitative Estimation of Metaxalone and Diclofenac potassium in Pharmaceutical Dosage Form. The developed RP- HPLC method with the mobile phase Methanol: Water (80: 20) and Qualisilgold-C18 (250Χ4.6mm, 5μm particle size) as stationary phase with a flow rate of 1.0 mL/minute by using λmax 275nm and PDA detector. Proposed method was found to be linear in the concentration range of 8.0 to 80.0 μg/mL for Metaxalone and 1.0 to 10.0 μg/mL for Diclofenac potassium respectively, and the correlation coefficient was found to be 0.9991 for both the drugs. Precision study showed that the % RSD was within the range of acceptable limits (< 2), and the % Recovery was found to be in the range of 99.29%-101.28% for Metaxalone and 99.98%-102.45% for Diclofenac potassium. The proposed method has been validated as per ICH guidelines.

The present article is designed for screening and evaluation of biomolecules, antimicrobial potential from extracts of A. nallamalayana (root), belongs to the family Acanthaceae. A. nallamalayana is the rare and endemic to the forests of Nallamalais, the nucleus of Eastern Ghats, India. It has been used in the folklore system of medicine for the treatment of mouth ulcers, leucorrhoea and abortion / sterility. Phytochemical screening and antimicrobial activity of the test species is hither to not reported. The phytochemical investigation on all such extracts revealed the presence of flavonoids, alkaloids, phenols, steroids and triterpenoids. The antimicrobial activity of various extracts (petroleum ether, ethyl acetate and methanol) of A. nallamalayana revealed that the methanolic extract (root) exhibited maximum inhibition on all test pathogens followed by ethyl acetate while petroleum ether failed to show inhibition. Klebsiella pneumoniae, Salmonella typhimurium, Staphylococcus aureus were proved as most sensitive while Bacillus subtilis as resistant strain to the test extracts.