<prompt> Which of the following is a nootropic drug?RivastigmineTacrineAmantadinePiracetam  <response>: Nootropic drugs are newer class of drugs to improvr the cognitive capacity in alzheimers patient. aThey include piracetam and aneracitam REFR: ESSENTIALS OF MEDICAL PHARMACOLOGY KD TRIPATHI 8TH ED. 