“…at a dose of 1mg/kg, an IM atropine sulfate (Memphis Pharmaceutical, Egypt) at a dose of 0.04 mg/kg, and an IM injection of nalbuphine HCl (Nalufin®, Amoun pharmaceutical company, S.A.E.) at a dose of 1mg/kg ( Clarke et al., 2014 ). General anesthesia was then induced by intravenous (IV) injection of Propofol at a dose of 2 mg/kg (Diprivan®, AstraZeneca) and maintained by 2% isoflurane (IsoFlo®, Zoetis) and oxygen ( Clarke et al., 2014 ).…”