What does ivermectin do to your brain? https://www.dosepharmacy.com/iverheal-3mg-tablet-ivermectin Ivermectin concentrations beyond the therapeutic level may overload the P- glycoprotein pumps' capacity to restrict the drug from entering the central nervous system (CNS) by saturating the pump. This may result in neurotoxic side effects include coma, encephalopathy, seizures, myoclonus, ataxia, and tremors.