Two types of combined oestrogen‐progestogen oral contraceptives were administered for three cycles to forty women belonging to poorer socio‐economic groups. Liver function was assessed by studies on serum bilirubin, S.G.O.T. and S.G.P.T., total proteins and A.G. Ratio in control cycle before starting medication and in three consecutive cycles during medication. No significant differences were observed in the mean values before and during therapy in the two groups of women stud