The semi-solid casting method is an emerging technology in personalized medicine. This method involves adding a water-soluble film-forming material solution to an acid solution of a water-insoluble polymer, then adding a plasticizer to obtain a colloidal substance, which is subsequently melted and cast into a film-forming agent. The CD Formulation R&D team has established a complete semi-solid casting technology platform and is committed to creating high-quality oral thin films.
When acid-insoluble polymers are used, the semi-solid casting method is generally used. The method prepares a water-soluble film-forming polymer solution, which is then poured into an acid-insoluble polymer solution prepared in sodium hydroxide or ammonium hydroxide. The plasticizer is added to form a gel group. The additional amount of plasticizer affects the properties of gel clumps. Gel blobs are formed and then cast into films or strips using a heat control roll/drum. The ratio of acid-insoluble polymer to film-forming polymer should be 1:4. The thickness of the film formed by this method is about 0.015 to 0.05 inches.
Fig.1 Workflow of Semi-solid casting method for oral thin film preparation. (CD Formulation)
Technology: Semi Solid Casting Method
Journal: International Journal of Pharmacy & Life Sciences
IF: 5.8
Published: 2023
Results: In this study, the semi-solid casting method was used to prepare mouth-dissolving films. Successful formulation of Cariprazine mouth-dissolving films may significantly prevent first-pass metabolism. From the present study, it can be concluded that HPMC-K4M based mouth-dissolving films of Cariprazine can be successfully prepared with considerable stability and improved bioavailability.
CD Formulation can help you solve any problems that arise in the semi-solid casting method to prepare the oral thin film. If you have a requirement about our semi-solid casting method for oral thin film preparation services, please contact us by phone or email, and our colleagues will reply to you within three working days.
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