Which of the following would be the best choice of medication with which to replace his current regimen?

A 64-year-old man with a history of type 2 diabetes mellitus comes to his primary care physician complaining of sweating, tremors, palpitations, and memory impairment since starting an oral medication to treat his diabetes. His doctor decides to change the patient’s oral medication. Which of the following would be the best choice of medication with which to replace his current regimen?

(A) Glargine
(B) Glipizide
© Glyburide
(D) Pioglitazone
(E) Ultralente insulin