Alginate Hydrogel Formulation with Ketorolac for the Treatment of Pain Related Sialolithiasis Silva, Cristina Pérez González, Noelia Ketorolac Gel Hydrogels Alginate Sialolithiasis Mucosa; Inflammation Sialolithiasis mainly affects the oral salivary glands due to the presence of small stones that obstruct the secretion of saliva. The treatment and control of pain and inflammation during the course of this pathology is essential to guarantee the patient’s comfort. For this reason, a ketorolac calcium cross-linked alginate hydrogel was developed, and it was then applied in the area of the buccal cavity. The formulation was characterized (swelling and degradation profile, extrusion, extensibility, surface morphology, viscosity, and drug release). The drug release was studied ex vivo in static Franz cells and with a dynamic ex vivo method under artificial saliva continuous flow. The product exhibits adequate physicochemical properties considering the intended purpose, and the drug concentrations retained in the mucosa were high enough to deliver a therapeutic local concentration able to reduce the pain associated with the patient’s conditions. The results confirmed the suitability of the formulation for application in the mouth. 2023-09-01T10:44:49Z 2023-09-01T10:44:49Z 2023-05-16 info:eu-repo/semantics/article Silva, C.; Ramos-Yacasi, G.; Mallandrich, M.; Colom-Codina, H.; Suñer-Carbó, J.; Pérez-González, N.; Calpena, A.C.; Fernández-Campos, F. Alginate Hydrogel Formulation with Ketorolac for the Treatment of Pain Related Sialolithiasis. Gels 2023, 9, 415. https://doi.org/10.3390/ gels9050415 https://hdl.handle.net/10481/84188 10.3390/gels9050415 eng http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional MDPI