The current study was carried out at Ibn - Sina Hospital in Nineveh Governorate, where the relationship between histamine receptors1&2, liver enzyme functions, Albumin, and Alkaline phosphate was studied in patients with hepatitis C virus type. Samples were taken from patients diagnosed with hepatitis C, 60 of whom were compared with 30 controls. Take 5ml of blood, separate it with a centrifuge, and test the serum. The sample size was equal for Men and Women, and the age range was 18 to 78 years. ALT (GPT), Albumin, Alkaline phosphates, and histamine-2 receptor levels were statistically significant, while AST (GOT) and histamine-1 receptor levels were not statistically significant.