“…The toxicity of CuSO 4 in vivo has been comprehensively investigated in previous studies, and its median lethal dose in mice, 3 days after injection, is 29.5 mg/ kg. 44 Another study reported that intraperitoneal injection of CuSO 4 in single doses of 6.6, 13.2, or 19.9 mg/kg body weight produced no micronucleus induction in male CBA mice. 45 Similar results were reported in another study that investigated the bone marrow of the animals treated with intraperitoneal injection of 6.6 mg/kg CuSO 4 after 24 and 48 hours.…”