RT Journal Article T1 Lidocaine Pharmaceutical Multicomponent Forms: A Story about the Role of Chloride Ions on Their Stability A1 Verdugo-Escamilla, Cristobal A1 Alarcon-Payer, Carolina A1 Acebedo-Martinez, Francisco Javier A1 Fernandez-Penas, Raquel A1 Dominguez-Martin, Alicia A1 Choquesillo-Lazarte, Duane K1 lidocaine K1 cocrystals K1 mechanochemistry K1 multicomponent materials K1 API K1 pharmaceutical solids K1 solubility K1 Pharmacology K1 Prediction K1 Salts AB In this investigation, three new crystal forms of lidocaine, and another three of lidocaine hydrochloride with hydroquinone, resorcinol, and pyrogallol were synthetised. All the new forms were characterised using multiple techniques, PXRD, SC-XRD, DSC, and FTIR. The stability of the forms was studied, and, for the more stable forms, i.e., (lidhcl) forms, the solubility was determined through FTIR analysis. The new crystalline forms obtained with (lidhcl) and the three coformers showed an interesting steric stabilisation mechanism of the oxidation of hydroxybenzenes and showed good physicochemical properties with respect to (lidhcl), constituting a mechanism of modulation of the physicochemical properties. PB Mdpi YR 2022 FD 2022-06-01 LK http://hdl.handle.net/10668/20950 UL http://hdl.handle.net/10668/20950 LA en DS RISalud RD Apr 18, 2025