You are right in saying that you have certain concerns regarding the application of creatine and whey protein while undergoing tuberculosis treatment. Normally, creatine and whey protein supplements are safe when taken safely, but in your scenario, you should be more cautious. TB treatment would require specific medicines to help do their job. The consumption of creatine and whey protein may interfere with the absorption of these drugs, or in other words, decrease the strength of drugs. It is also crucial that you do not deviate from the exact set of actions the medic tells you to because, in your place, your health is the top priority. Once the chemo treatment is done, you might consider the idea of taking these supplements as directed by your pulmonologist.