hi you need to relax tuberculosis is treatable disease now it does not usually cause shortening of lifespan the medications are quite effective i am however not clear about a few aspects he has tb of what part? how was it confirmed? did he take the medications regularly, without a break? what kind of organisms grew in his tb culture, if done? did his liver function test remain normal during treatment? did he have dose modification? i need answers to all that before i can answer you more completely. treatment is longer if he has extrapulmonary tb. and of course there is a possibility of mdr/xdr tuberculosis where the current medications are ineffective and a higher version of medicines has to be used your treating dr can probably tell you more about that i am sorry for giving you a limited answer but i need more details to answer more completely best of luck dr.saumyamittal@gmail.com