sir my son he lost his memory, know he is 34 years. when he was 21 years, he is in B.om student. one night he sleep , early in the morning, he lost his memory he told , he cant remember any thing, how he can give the paper, and he left the paper blank many docto give me suggestation. riperdol and, rivitrol tablet. but cant get any result. please guide me, and suggest me, any suitable medician.