The co-crystals were obtained by solvent-assisted mechanosynthesis as follows: the mixtures of a selected mole fraction of meloxicam and tartaric acid were mixed and ground for 5 to 10 min at room temperature using a mortar and pestle to obtain complete homogenization. After that, approximately 0.06 mL methanol was addedadded, and the grinding was continued until the complete evaporation of the solvent (Figure 1). After preparation, the mixtures were kept in a desiccator until they were studied.
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