My father age 67 years had plural effusion only in right lung , some 15 days ago and after some test he diagnosed TB he is under treatment of plumongist , doctor prescribed him R cinex 600 once daily with pyrazinamide 750 (two tablet together)once daily And combutol 1000 once daily. My concern is that can my father take this pyrazinamide 750 tablet two tablet together becoz doctor told him to take this tablet 2 at one shot. Is  it okay, his weight is 68 kg . Kindly suggest me what to do? Thanks