Simultaneous determination of aliskiren and hydrochlorothiazide from their pharmaceutical preparations using a validated stability-indicating MEKC method.
Summary of "Simultaneous determination of aliskiren and hydrochlorothiazide from their pharmaceutical preparations using a validated stability-indicating MEKC method."
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. firstname.lastname@example.org.
This article was published in the following journal.
Name: Journal of separation science
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21710580
- DOI: http://dx.doi.org/10.1002/jssc.201100241
An RP-HPLC method was developed for the simultaneous determination of the diuretic, hydrochlorothiazide, along with six drugs representing the most commonly prescribed antihypertensive pharmacological...
Losartan potassium, Valsartan , Telmisartan and Irbesartan are angiotensin-II-receptor antagonists (ARA II) group which used in treatment of hypertension alone or in combination with other drugs mainl...
Abstract A simple, sensitive and accurate HPLC method with high throughput has been developed and validated for the simultaneous determination of irbesartan (IRB) and hydrochlorothiazide (HCT) in comb...
Three simple, accurate and precise spectrophotometric methods manipulating ratio spectra were developed and validated for simultaneous determination of Irbesartan (IRB) and Hydrochlorothiazide (HCT) w...
A linear sweep voltammetric method is used for direct simultaneous determination of L-cysteine and L-cysteine disulfide (cystine) based on carbon ionic liquid electrode. With carbon ionic liquid elect...
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...
This study will assess the efficacy and safety of combination therapy of Aliskiren/Amlodipine or Aliskiren/Amlodipine/Hydrochlorothiazide in patients with stage II Hypertension.
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...
Medical and Biotech [MESH] Definitions
The simultaneous, or near simultaneous, transference of heart and lungs from one human or animal to another.
Review of claims by insurance companies to determine liability and amount of payment for various services. The review may also include determination of eligibility of the claimant or beneficiary or of the provider of the benefit; determination that the benefit is covered or not payable under another policy; or determination that the service was necessary and of reasonable cost and quality.
Polydeoxyribonucleotides made up of deoxyadenine nucleotides and thymine nucleotides. Present in DNA preparations isolated from crab species. Synthetic preparations have been used extensively in the study of DNA.
Preparations of Cassia senna and C. angustifolia (see SENNA PLANT). They contain sennosides, which are anthraquinone type CATHARTICS and are used in many different preparations as laxatives.
Determination, by measurement or comparison with a standard, of the correct value of each scale reading on a meter or other measuring instrument; or determination of the settings of a control device that correspond to particular values of voltage, current, frequency or other output.