Cardamom oil is one of the active herbs used as a treatment in different diseases by the function of the blood serum components. Among the methods used for identification of function group which acted in the human body, the method of electrochemical analysis using cyclic voltammetry was used to determine the effectiveness of cardamom by the oxidation-reduction reaction in the blood medium. Results showed that the cardamom compound presented peaks of oxidation-reduction in the blood serum medium of 0.8 and -0.65 V, respectively. The oxidation peak disappeared in alkaline pH; hence, the cardamom acted as anti-oxidative compound in alkaline medium and with ascorbic acid. But the oxidation peak was enhanced in acidic pH. Other electrochemical parameters of cardamom in blood serum medium were determined, including studies on different scan rates, reliability and stability.

Metformin HCl is a drug to treatment of different diseases such as ovary, diabetes, and slimming. Present study includes the electrochemical analysis by cyclic blood medium at different pH to evaluate the oxidation-reduction current peaks of the metformin compound which appeared at +750 and-750 mV respectively in acidic blood medium, while the oxidation current peak of the metformin was disappeared in alkaline blood medium with present of reduction one, so metformin acts as antioxidant reagent in alkaline blood medium. The study device the patients whom have taken metformin tablets as a treatment for diabetic disease must take ascorbic acid with metformin tablet to avoid the oxidation stress.