Hi, My Dad Is Having TB And Medicine Given Affected

Hi,

My Dad is having TB and medicine given affected his liver. Now with the liver is ok and the Doctor suggested Petiol D and Procharge plus in the morning and Combutol 800, Levomac 500 afternoon and ambistryn .50 once in two days and sorbiline 5ml in the morning and evening. He is 79 year old now. The problem is he is not having food properly saying not hungry, very weak now. Please suggest