Track topics on Twitter Track topics that are important to you
A stability-indicating MEKC method was developed and validated for the simultaneous determination of aliskiren (ALI) and hydrochlorothiazide (HCTZ) in pharmaceutical formulations using ranitidine as an internal standard (IS). Optimal conditions for the separation of ALI, HCTZ and its major impurity chlorothiazide (CTZ), IS and degradation products were investigated. The method employed 47 mM Tris buffer and 47 mM anionic detergent SDS solution at pH 10.2 as the background electrolyte. MEKC method was performed on a fused-silica capillary (40 cm) at 28°C. Applied voltage was 26 kV (positive polarity) and photodiode array (PDA) detector was set at 217 nm. The method was validated in accordance with the ICH requirements. The method was linear over the concentration range of 5-100 and 60-1200 μg/mL for HCTZ and ALI, respectively (r(2) >0.9997). The stability-indicating capability of the method was established by enforced degradation studies combined with peak purity assessment using the PDA detection. Precision and accuracy evaluated by RSD were lower than 2%. The method proved to be robust by a fractional factorial design evaluation. The proposed MEKC method was successfully applied for the quantitative analysis of ALI and HCTZ both individually and in a combined dosage tablet formulation to support the quality control.
Laboratory of Research in Pharmaceutical Quality Control, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil. email@example.com.
This article was published in the following journal.
Name: Journal of separation science
Two accurate and sensitive methods were developed and validated for the simultaneous determination of amlodipine (AML),valsartan (VAL), and hydrochlorothiazide (HCT) in their ternary mixture. The firs...
This paper describes an electroanalytical method for the simultaneous determination of vanillin (VAN) and caffeine (CAF) using an anodically pretreated boron-doped diamond electrode. Selective determi...
Butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) are widely used to prevent oxidation and rancidity in foodstuffs, pharmaceutical preparations and cosmetic formulations. Although thei...
The renoprotective effects of the direct renin inhibitor, aliskiren, in renal transplant recipients have been supposed, but not finally proven. We performed an exploratory double-blind, losartan contr...
Two sensitive, accurate and precise chromatographic methods mentioned as TLC-densitometric method and RP-HPLC-DAD method, were developed and validated for the simultaneous determination of mefenamic a...
This study will assess the efficacy and safety of combination therapy of Aliskiren/Amlodipine or Aliskiren/Amlodipine/Hydrochlorothiazide in patients with stage II Hypertension.
To evaluate the blood pressure lowering effect and safety of aliskiren used in combination with valsartan/hydrochlorothiazide in diabetic patients with essential hypertension, not adequate...
The purpose of this trial is to evaluate the safety and efficacy of combination therapy of aliskiren/hydrochlorothiazide (HCTZ) 150/25 mg and 300/25 mg compared with HCTZ 25 mg in patients...
To demonstrate the efficacy and safety of aliskiren given to patients with essential hypertension, at doses of 75 mg, 150 mg and 300 mg alone, and in combination with hydrochlorothiazide (...
Evaluate the diastolic blood pressure lowering effect of combination of aliskiren 300 mg and HCTZ (12.5 mg and 25 mg) in hypertensive patients who do not show sufficient blood pressure res...
Substances added to pharmaceutical preparations to protect them from chemical change or microbial action. They include ANTI-BACTERIAL AGENTS and antioxidants.
The application of scientific knowledge or technology to pharmacy and the pharmaceutical industry. It includes methods, techniques, and instrumentation in the manufacture, preparation, compounding, dispensing, packaging, and storing of drugs and other preparations used in diagnostic and determinative procedures, and in the treatment of patients.
Substances which are of little or no therapeutic value, but are necessary in the manufacture, compounding, storage, etc., of pharmaceutical preparations or drug dosage forms. They include SOLVENTS, diluting agents, and suspending agents, and emulsifying agents. Also, ANTIOXIDANTS; PRESERVATIVES, PHARMACEUTICAL; COLORING AGENTS; FLAVORING AGENTS; VEHICLES; EXCIPIENTS; OINTMENT BASES.
Drugs intended for DENTISTRY.
A clear, colorless, viscous organic solvent and diluent used in pharmaceutical preparations.
A diagnostic test is any kind of medical test performed to aid in the diagnosis or detection of disease. For example: to diagnose diseases to measure the progress or recovery from disease to confirm that a person is free from disease Clin...
Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...