Protective role of Gramine and N-acetylcysteine against tramadol induced testicular toxicity in rats: Gramine & N-acetylcysteine mitigate opioid related testicular toxicity. Indian Journal of Experimental Biology (IJEB), [S. l.], v. 63, n. 11, p. 901–912, 2026. DOI: 10.56042/ijeb.v63i11.20257. Disponível em: https://or.niscpr.res.in/index.php/IJEB/article/view/20257. Acesso em: 13 may. 2026.