This study explores the development of buccal films as an innovative drug delivery system for hypertension management, combining candesartan cilexetil (CC) and hydrochlorothiazide (HCTZ). Utilizing a solvent casting technique, films were prepared with various polymers, including PVA, PVP, and CMC Na, and enhanced with plasticizers to improve solubility and bioavailability. The films were evaluated for physicochemical and mechanical properties, disintegration time, and drug content uniformity. Results demonstrated that the films were visually uniform, with excellent folding endurance and a neutral pH. The formulation containing PVA, PVP, and CMC Na exhibited the fastest disintegration rate and superior bioadhesion. The use of Dynamic Mechanical Thermal Analysis (DMTA) confirmed the miscibility of the drugs within the polymeric matrix, ensuring effective delivery. This novel formulation offers significant advantages by improving patient compliance and bypassing first-pass metabolism, presenting a promising alternative for hypertension treatment.
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