The aim of this study was to determine the effects of parenteral administration of L-carnitine on some biochemical parameters in Halep (Damascus) goats during the last month of pregnancy. L-carnitine was administrated to goats in group I (n = 13) by subcutaneous injections once a week during the last month of the pregnancy. Physiologic salt solution was administered to goats in group II (n = 12) by the same route during the same period. Differences of glucose concentration between groups were not significant (P > 0.05). Serum beta-hydroxybutyric acid (BHB) concentrations in both groups increased until parturition. However, differences between groups were not significant (P > 0.05). Concentration of serum NEFA (Non Esterified Fatty Acid) in group I was lower compared to group II 2 weeks before parturition (P < 0.05). Differences of serum triglyceride and cholesterol concentration between groups were not significant (P > 0.05). Level of glucose concentration in L-carnitine administered goats with twin kids was higher than the controls with twin kids in the 2(nd) (P < 0.01) and 3(rd) weeks (P < 0.05) before parturition. It was concluded that parenteral administration of L-carnitine might be a protective measure against pregnancy toxemia (ketosis) via increasing serum glucose concentration in goats with twin pregnancy.