Electroanalysis Applied to Compatibility and Stability Assays of Drugs: Carvedilol Study Case.
Murilo Ferreira de CarvalhoLuane Ferreira GarciaIsaac Yves Lopes de MacêdoRicardo Neves MarretoMayk Teles de OliveiraRenê Oliveira do CoutoCarlos Eduardo Peixoto da CunhaKarla Carneiro de Siqueira LeiteKênnia Rocha RezendeFabio Bahls MachadoVernon SomersetEric de Souza GilPublished in: Pharmaceuticals (Basel, Switzerland) (2020)
Carvedilol (CRV) is a non-selective blocker of α and β adrenergic receptors, which has been extensively used for the treatment of hypertension and congestive heart failure. Owing to its poor biopharmaceutical properties, CRV has been incorporated into different types of drug delivery systems and this necessitates the importance of investigating their compatibility and stability. In this sense, we have investigated the applicability of several electroanalytical tools to assess CRV compatibility with lipid excipients. Voltammetric and electrochemical impedance spectroscopy techniques were used to evaluate the redox behavior of CRV and lipid excipients. Results showed that Plurol® isostearic, liquid excipient, and stearic acid presented the greatest anode peak potential variation, and these were considered suitable excipients for CRV formulation. CRV showed the highest stability at room temperature and at 50 °C when mixed with stearic acid (7% w/w). The results also provided evidence that electrochemical methods might be feasible to complement standard stability/compatibility studies related to redox reactions.
Keyphrases
- room temperature
- ionic liquid
- heart failure
- gold nanoparticles
- molecularly imprinted
- blood pressure
- reduced graphene oxide
- drug delivery
- multidrug resistant
- high throughput
- fatty acid
- left ventricular
- magnetic resonance imaging
- label free
- electron transfer
- single molecule
- climate change
- atrial fibrillation
- computed tomography
- combination therapy
- atomic force microscopy
- tandem mass spectrometry
- high speed
- liquid chromatography