Fading opioid epidemics? Analgesic effects of a new intravenous combination of ibuprofen and low-dose tramadol. Randomized, double-blinded, placebo-controlled phase IIb-IIIa pilot clinical trial after orofacial surgery - Salas Butron, Rosario; Lozano Martin, Daniel; Astasio Gonzalez, Oliver; Jimenez Ortega, Alejandro; Uribe Lopez, Diana; Perez Ingidua, Carla; Martin Granizo, Rafael; Abad Santos, Francisco; Galvez Mugica, M Angeles; Borobia Perez, Alberto; Llanos Jimenez, Lucia; Rivas Paterna, Ana Belen; et al. (BASIC & CLINICAL PHARMACOLOGY & TOXICOLOGY, 2022)