The toxicity of Rhazya stricta leaves for Najdi sheep is described in
9 sheep assigned as untreated controls, Rhazya-treated at 0.25 g/kg/d
and Rhazya-treated at 1 g/kg/d. The oral use of 1 g/kg/d caused body w
eight depression, ruminal bloat, diarrhea, dyspnea and weakness of the
hind limbs. Enterohepatonephropathy, pulmonary congestion, hemorrhage
and emphysema, lymphocytes in vital organs, and congestion of the blo
od vessels of the heart were associated with increases in serum AST an
d LDH, in elevated bilirubin and urea concentrations, and decreased to
tal protein, albumin and calcium concentrations, and leucopenia and an
emia.