The Antinociceptive Effect of Lonchocarpus Araripensis Lectin is Mediated by Endocannabinoid Receptors Renata Morais Ferreira Amorim1, Messias Vital de Oliveira2, Benildo Sousa Cavada2, Kyria Santiago Nascimento2, Ana Maria S. Assreuy1* and Alana de Freitas Pires3 Abstract The involvement of endocannabinoid receptors in the antinociceptive activity of Lonchocarpus araripensis lectin (LAL) was