{HEAD ~ Suitable antidiabetics} comprise insulin as well as {TAIL ~ orally active hypoglycaemic agents} such as sulphonylureas, e.g. glibenclamide and glipizide; biguanides e.g. metformin; benzoic acid derivatives, e.g. repaglinide;and thiazolidinediones, e.g. troglitazone and ciglitazone 
comprise
{ HEAD ~ Suitable antidiabetics } comprise insulin as well as { TAIL ~ orally active hypoglycaemic agents } such as sulphonylureas , e.g. glibenclamide and glipizide ; biguanides e.g. metformin ; benzoic acid derivatives , e.g. repaglinide;and thiazolidinediones , e.g. troglitazone and ciglitazone
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH