My father, is been diagnosed with bipolar disorder , for past 2.5 years he had one ep of mania that last for 3+ months but he was on meds i.e. antidepressants and anti psychotics , then for like past nine months he stopped taking anti psychotics and kept taking antidepressent then from feb 3 2018 we noticed severe manic symptoms , too happy too angry , spending too much money, i want to know how long u think this episode gonna last and how to give him meds cuz he thinks he is ok he does'nt need?