Posted by admin on Apr 1, 2013 in |
An UV spectrophotometric method for the quantitative determination of Temozolomide (TMZ) in bulk and capsule was developed in present work. The parameters linearity, precision, accuracy, limit of detection and limit of quantitation were studied according to International Conference on Harmonization guidelines. UV spectroscopic determination was carried out at an absorption maximum of 328 nm using 0.1N Hydrochloric acid as solvent. In the UV spectroscopic method linearity over the concentration range of TMZ was found to be 2-18 µg/ml with a correlation coefficient 0.999. The limit of detection and limit of quantification were found to be 0.5271 and 1.6454 mg/ml respectively. Results of the analysis were validated statistically and by recovery studies. The proposed method is simple, rapid, precise, accurate and reliable and can be used for the routine quantitative analysis of TMZ in bulk and pharmaceutical...
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Posted by admin on Apr 1, 2013 in |
Plants of medicinal importance though are quite well known among the Ayurvedic practitioners since years, yet many of them have not been standardized, validated and documented completely. Among such medicinally valuable plants, Salacia holds a place as an effective antidiabetic herb and many species of this plant are in use as anti-diabetics. The present study reports the phytochemical analysis of one of its species Salacia oblonga (SO) (roots and stems), belonging to the family Celastraceae (bittersweet), through various biochemical and chromatographic methods. TLC and HPTLC analysis of six different extracts of SO revealed numerous bands, indicating the presence of diverse groups of phytocompounds, many of them are assumed to contribute significantly to its antioxidant activity as well as, other biological activities. This type of analysis can help in fingerprint profiling of the plant and its various species. The identification and characterization of the phytocompounds can further help in finding out molecular targets/mechanism of action of the constituents of this herb that are responsible for its biological...
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Posted by admin on Apr 1, 2013 in |
With the blend of Methocel K15, a synthetic polymer and xanthan gum, a natural polymer (3:1) was used in the formulation of matrix tablets to find out the effect of natural polymer in the sustained release dosage form. Direct compression process was applied for the preparation of Ketotifen fumarate tablets. The dissolution profiles were carried out by USP apparatus 2 (paddle) at 50 rpm in 500 ml 0.1 N HCl and distilled water. For interpreting the results a one way analysis of variance (ANOVA) was exploited. Statistically significant differences were found among the drug release profile from different matrices. At a higher polymeric content (60% of the total tablet weight), drug release from the combination of Methocel K15M and xanthan gum (3:1) was slower. On the contrary, at a lower polymeric level (30% of the total tablet weight); the rate of drug release was prominent. The best-fit release kinetics was accomplished with the Higuchi model followed by the zero-order plot, Korsmeyer and Hixson Crowell equations. One formulation showed drug...
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Posted by admin on Apr 1, 2013 in |
The concerned study reveals the first time experimental investigation of Hypoglycemic and antihyperglycemic effect of seed extract of Acacia tortilis plant was in normoglycaemic and Alloxan-induced (135 mg/Kg body weight intraperitoneally) diabetic rats. The seed extract at the dose of 100 and 200 mg/kg body weight was administered orally once a day for 13 days and at the end of the experimentation Oral Glucose Tolerance Test (OGTT) and blood glucose estimation was done in all groups. The extract significantly lowered the blood glucose levels to an extent comparable to that produced by standard Oral hypoglycemic drug (Gliclazide 22 mg/Kg body weight) in both normal and diabetic rats. The results suggest that seed extract of Acacia tortilis possess significant antidiabetic activity. The extract seems promising for the development of a phytomedicine for diabetes mellitus in future...
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Posted by admin on Apr 1, 2013 in |
In this study, five different products of each metronidazole tablets and benzoate salt oral suspensions were purchased from the different retail outlets in the local market of Addis Ababa and analyzed using official methods (Pharmacopoeial methods of USP/BP/IP) by employing HPLC for the tablet dosage forms and non-aqueous titration with potentiometric end point for the suspensions. The assay results showed that all brand and generic products of metronidazole tablets and metronidazole benzoate oral suspensions met the USP and the IP specifications, respectively. Furthermore, all the tablets analyzed have passed the hardness, friability and weight variation tests. All tablets except metrogyl passed the disintegration time test and dissolution rate test specifications of BP/USP. In addition, different brands and a generic product of metronidazole benzoate oral suspensions were evaluated by determining their physical stability with respect to the two useful parameters, sedimentation volume and Viscosity. Amrizole has relatively moderate viscosity (728.0 ± 0.12 cP), which may cause good pourability of the suspension with a sedimentation value of 1 (acceptable and stable...
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