hi all.. i have a question about pharmacology.. we have a project to make a drug card on metformin but i have trouble understanding what we need to do. i do not understand what does it mean by the classification and the interaction of the drug. is classification just what this drug does?? because when i looked for metformin, says antidiabetic; oral antihyperglycemic agent which improves glucose tolerance in non-insulin dependent pts. all help will be greatly appreciated.. thanks soo much in advance