A client presents to the clinic with a new diagnosis of type 2 diabetes and wants to know more information on metformin. Which of the following statements are TRUE regarding metformin (Glucophage)? (Select All That Apply.).

A. Metformin interacts with iodine-containing contrast dye, increasing the risk of acute renal failure. Clients should temporarily stop metformin before undergoing contrast procedures. B. Metformin is available in an oral form and is commonly prescribed for type 2 diabetes. C. Weight gain is not a common side effect of metformin; in fact, it is often associated with weight neutrality or mild weight loss. D. Metformin is typically used as a first-line medication for managing type 2 diabetes.