<prompt> Fanconis syndrome is caused by-CephalosporinsChloramphenicolDecreased pseudocholinesteraseOld and degraded tetracycline  <response>: Ans. is d i.e., Old and degraded tetracycline o A fanconi syndrome like condition is produced by outdated tetracyclines due to proximal tubular damage caused by degraded products --- epitetracycline, anhydrotetracycline, and epianhydrotetracycline. 