<prompt> Which of the following drugs is used for painful diabetic neuropathyDuloxetinePregabalinAmitriptylineAll of the above  <response>: Answer is D All of the above: Amitriptyline may all be used for treatment of painful diabetic neuropathy. Two agents, Duloxetine and Pregabalin have been approved by the U.S. FDA for pain associated with diabetic neuropathy - 