This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which of the Anti - TB drug can not be used along with Rifampicin 
Select and explain. 
A. Thioacetazone, B. Bedaquiline, C. PAS, D. Ethionamide
C: PAS
Answer: C: PAS 
Explanation: PAS decreases absorption of Rifampicin and hence can to be used with Refampicin.