This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
Zidovudine toxicity is increased by all except - 
Select and explain. 
A. Azithromycin, B. Probenecid, C. Cisplatin, D. Paracetamol
A: Azithromycin
Answer: A: Azithromycin 
Explanation: Paracetamol increases zidovudine toxicity ,probably by competing for glucuronidation. Azole antifungals also inhibit AZT metabolism. Other nephrotoxic & myelosuppressive drugs & probenecid enhance toxicity . Reference :Tripathi textbook of pharmacology 7th edition pg no 807.