Effects of oral lactoferrin (30–300 mg/kg) and captopril (40 mg/kg) on plasma H₂O₂ concentration on Dex-induced hypertension in prevention (Prev) and reversal (Rev) groups. Values are means ± SEM for six rats. As compared to Dex control group, *: , **: and ***: . As compared to saline control group, ^##: , ^###: .