Thank you for asking the question I am Dr. Adil Ramzan when you start taking Myrin P forte, usually after two to three weeks you become non-contagious. The Mycobacterium tuberculosis stops to appear in sputum. In order to confirm it, have a sputum test for acid-fast bacilli, if they are not present in the sputum, then it means you are non-contagious. In general, if your mycobacterium tuberculosis is not multi-drug resistant then you become non-contagious, two to three weeks after starting the Myrin P forte.  If you have any further question. Please don’t hesitate to ask. 

Best regards.  Dr. Adil Ramzan