Endogenous serotonin system does not participate in the withdrawal opiate, but its inhibition by stimulation 5-HT1A receptor increases the effectiveness of the clonidine in rats / El sistema endógeno de serotonina no participa en la abstinencia opiácea... Health and Addictions/Salud y Drogas, [S. l.], v. 3, n. 1, 2003. DOI: 10.21134/haaj.v3i1.150. Disponível em: https://ojs.haaj.org/haaj/article/view/150. Acesso em: 25 jul. 2026.