a rapid, specific and accurate proton quantitative nuclear magnetic resonance spectroscopic (1h qnmr) and also a reversed phase derivatization hplc method have been developed to quantify a toxic, uv-visible inactive and non-volatile impurity n,n-dimethylamine hydrochloride (dma∙hcl) in metformin hydrochloride (mf∙hcl), an active pharmaceutical ingradient. the method is based on proton quantitat...

DESCRIPTION GLUCOPHAGE (metformin hydrochloride) Tablets and GLUCOPHAGE XR (metformin hydrochloride) Extended-Release Tablets are oral antihyperglycemic drugs used in the management of type 2 diabetes. Metformin hydrochloride (N,N-dimethylimidodicarbonimidic diamide hydrochloride) is not chemically or pharmacologically related to any other classes of oral antihyperglycemic agents. The structura...

Metformin hydrochloride, a drug group of biguanides, with significant efficacy in the treatment of diabetes type II, is decomposed before reaching to the stomach and is wasted in great losses. In this study, the nanoliposomes of metformin hydrochloride were prepared with Bingham method. At first, the single factor test is done. Design variables are: lecithin to cholesterol ratio, organic solven...

Metformin hydrochloride, a drug group of biguanides, with significant efficacy in the treatment of diabetes type II, is decomposed before reaching to the stomach and is wasted in great losses. In this study, the nanoliposomes of metformin hydrochloride were prepared with Bingham method. At first, the single factor test is done. Design variables are: lecithin to cholesterol ratio, organic solven...

A simple, rapid, and precise reversed-phase high-performance liquid chromatographic method for simultaneous analysis of metformin hydrochloride, gliclazide, and pioglitazone hydrochloride in a tablet dosage form has been developed and validated. Chromatography was performed on a 25 cm × 4.6 mm i.d., 5-μm particle, C18 column with 85:15 (v/v) methanol: 20 mM potassium dihydrogen phosphate buffer...

A new plastic membrane ion-selective electrode for determination of metformin hydrochloride has been prepared, after forming the ion pair of metformin hydrochloride with sodium tetraphenylborate. Dioctyl phthalate and sodium tetraphenylborate were used as plasticizer and counter ion respectively. The electrode exhibited a linear potential response in the concentration range 1 × 10 M–1 × 10 M wi...

A novel approach was used to develop and validate a rapid isocratic Reversed Phase-High Performance Liquid Chromatographic method for the simultaneous estimation of Metformin Hydrochloride and Canagliflozin in bulk and pharmaceutical tablet dosage form with forced degradation studies. The separation was performed by using Kromasil C18 column (250mm×4.6 mm, 5mm particle size), Waters Alliance e2...

A new simple high performance thin layer chromatographic method for simultaneous determination of antidiabetic drugs, metformin hydrochloride and sitagliptin phosphate in bulk and tablet dosage form were investigated. Chromatographic separation of the drugs were performed on aluminum plates precoated with silica gel 60 F254 as the stationary phase and the solvent system consisted of acetone:met...

Present study was aimed to develop and validate a reverse-phase high-performance liquid chromatography method for simultaneous determination of sitagliptin phosphate and metformin hydrochloride in a marketed formulation. The drug separation was performed on Hibar-240, Lichrosphere-100 C18 ODS (250 × 4.6 mm, 5 μm) column, at a flow rate of 1 mL/min. The mobile phase used was a mixture of methano...

The purpose of the research work was formulation development and evaluation bi-layer floating tablets for metformin hydrochloride and glimepiride to improve the oral therapeutic efficacy Both these drugs exhibit pH dependent solubility and show good permeability from stomach and upper part of the small intestine into systemic circulation. Direct compression method form metformin hydrochloride l...