Abstract
Felodipine (FDP) is a vascular selective L-type calcium channel blocker, in hypertension patients FDP significantly lowers systolic and diastolic blood pressure (BP). It is a lipophilic drug molecule that contains a dihydropyridine ring responsible to show pharmacological activity, it is mainly used to control and prevent essential hypertension. This review article provides a summary of various analytical techniques for determining felodipine in pure form, pharmaceutical formulations, and biological fluids. Various analytical techniques are developed and validated, such as ultraviolet/visible spectrophotometry, high-performance liquid chromatography (HPLC), high-performance thin layer chromatography (HPTLC), and bioanalytical techniques. Estimated validation parameters such as linearity, LOD (Limit of Detection), and LOQ (Limit of Quantification) are discussed for each method. The wavelength of detection (λmax), mobile phase, columns, flow rate, retention time (Rt) and sample preparation techniques are all important quality elements for calculating Felodipine via analytical procedures.
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