In the recent time, many of the research groups have turned their focus to research on oral thin film technology for oral route. Oral thin films are the solid dosage form which leads to easy fragmentation or dissolution within 1 min when placed on the patient tongue. Formulation of oral thin films includes API, film forming polymer, plasticizer, saliva stimulating agent, flavour, sweetener etc. Film forming polymers play a standout role in tenacity and the resilience of oral thin films. Recently it has been natural polymers that are widely used because of their enormous advantages over synthetic polymers like biocompatibility, biodegradability, intactness, easy availability and economically more sound. This review spotlights the information about various natural polymers used in oral thin film. It also focuses on their advantages, properties and applicability in oral thin film technology as a film forming polymer.
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