<p>Prednisolone is over 98% eliminated in urine.<sup class="text-reference-group"><a class="reference-popover-link" data-content="Pickup ME: Clinical pharmacokinetics of prednisone and prednisolone. Clin Pharmacokinet. 1979 Mar-Apr;4(2):111-28. doi: 10.2165/00003088-197904020-00004. (PubMed ID 378499)" href="#reference-A187394">1</a></sup></p>