My father is 74 years old and was diagnosed with acute stroke - RT thalamic Infarct, HTN, Hyperhomocysteine. He has complained of feeling akin to pin and needles in his left hand, there was swelling on his left cheek. He is all right now but what I would like to know a) though the Dr. has informed that it was a very mild stroke but at any time were there any chances of paralytic attack b) What is Cognistar 60 mg (IV) injection used for, Dr. has advised my father to get these injections once a day for five days, which we have done - but what I would like to know what are they used for I just wanted a second opinion.