This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
Interstitial nephritis is seen in all EXCEPT: 
Select and explain. 
A. Diuretics, B. Beta lactams, C. Allopurinol, D. Isoniazid
B: Beta lactams
Answer: B: Beta lactams 
Explanation: Among the given above drugs all except b lactams show interstitial nephritis, renal insufficiency, nephrotic syndrome like manifestation as they are excreted through urine. Hence all these drugs are contraindicated in renal disease conditions. b lactams have less adverse effect on the renal system and it does not cause interstitial nephritis. ESSENTIALS of medical PHARMACOLOGY SEVENTH EDITION -KD TRIPATHI Page:586,816 ,817