Hello AKT 4 is a combination of rifampicin450+INH 300 mg+pyrazinamide 750 mg ( 1 tablet)+ethambutol 800 mg (1 tab). Usually anti tubercular drugs ( 1st line ) is advised on empty stomach so that food don t interfere in their absorption . Sometimes due to many reasons few patient can t take these drugs on empty stomach. In such type of cases I advise my patient to take 3 hours after meal . In spite of this many patient complaining that they are feeling nausea and belching , so I advise them to take pantoprazole on empty stomach twice in day i.e. one before meal and akt4 after meal . Still few patient feel nausea so for first few days they need intravenous infusion of normal saline ( if not contraindicated ) with I/V ranitidine or sodium bicarbonate . For stomach tuberculosis usual course of ATT is 6 - 9 months depending on the condition of patient , severity of symptoms , blood reports and treating doctors. Intensive treatment is for first 2 months and your father in law will start normal food within first 5-7 days after ATT ( Anti Tubercular Treatment). Normal diet , you can start once patient want it.