Figure 2. Formalin test to assay analgesic intensity of extracts from different processes CN: Control only formalin, CP: Control Formalin + Dexamethasone, UT: Ultrasound process, MI: Microwave process. MX: Combined processes (UT+MI).

From

Comparison of Cannabis Flower Oil Extract from Microwave, Ultrasound, and Combined Processes: Yield, Cannabinoids Content, and Analgesic Effect in Situ

Alfonso Topete-Betancourt, Luis E. Sámano Muñoz, Héctor E. Martínez-Flores, Osvaldo Álvarez-Cortés, Jose J. Virgen Ortiz, M.G. Garnica-Romo, Luis F. Ortega-Varela, Rosa M. García-Martínez

Journal of Food and Nutrition Research. 2023, 11(9), 594-601 doi:10.12691/jfnr-11-9-6