Background & Aim:Nowadays, attention has increasingly been directed toward the treatment of animal’s disease using medicinal herbs. This research was conducted to evaluate the impact of Kelussia odoratissima Mozaff extract on dog serum biochemical parameters and hepatica enzymes over time. Experimental: 32 adult dogs were randomly assigned to four groups. The first (control) group did not receive any pharmaceutical compound. The second group received 150 mg/kg of hydro-alcoholic extract of k.odoratissima. The third and the forth groups received 300 and 450 mg/kg of the extract, respectively. Finally, the blood samples were collected on days 0, 5, 10, and 15 for serum biochemical parameters analysis including the level of blood sugar, cholesterol, triglyceride, LDL and HDL, alanine aminotransferase, aspartate aminotransferases, and alkaline phosphatase. Results: Comparing to the control group, the levels of fast blood sugar, low density lipoprotein, high density lipoprotein, trigliceride, cholesterol, Alanin aminotransferase and aspartate aminotransferase in treated groups were significantly different over time and at various doses of the extract (P<0.05). However, the level of Alkaline-phosphatase (ALP) factor did not change throughout this study (P>0.05). Recommended applications/industries: Considering the results of this study, anti-diabetic, anti-atherosclerotic and antioxidant effects of Kelussia odoratissima can be concluded. Then, the possibility of employing K. odoratissima extract in drugs for the treatment of mentioned diseases can be suggested. Manuscript profile