Are Steroids Removed by Dialysis?
No, corticosteroids are not significantly removed by either hemodialysis or peritoneal dialysis, and no dose adjustment or supplemental dosing is required for patients undergoing dialysis. 1
Pharmacokinetic Basis
Hepatic metabolism is the principal route of elimination for corticosteroids, not renal clearance, which means dialysis has minimal impact on steroid plasma levels. 1
Direct pharmacokinetic studies in patients with end-stage renal disease demonstrate no change in prednisolone kinetics during either hemodialysis or continuous peritoneal dialysis compared to dialysis-free periods. 2
The mean plasma half-life of prednisolone remains unchanged (approximately 250 minutes in most patients) regardless of whether patients are undergoing active dialysis. 2
Clinical Dosing Recommendations
Standard Maintenance Therapy
No dose adjustment is required for commonly used corticosteroids such as prednisone or methylprednisolone in individuals with end-stage renal disease or those undergoing hemodialysis. 1
Standard dosing regimens should be maintained regardless of the timing of dialysis sessions because the quantity removed during a session is clinically insignificant. 1
Post-Dialysis Considerations
A supplemental post-dialysis dose of corticosteroids is unnecessary, in contrast to drugs that are markedly dialyzable such as aminoglycosides, cycloserine (56% removed), or pyrazinamide. 3, 1
This differs fundamentally from medications like cycloserine, which requires dosing after hemodialysis to avoid underdosing due to significant dialytic removal. 3
Chronic Steroid Therapy in Dialysis Patients
Patients on chronic steroid therapy who develop renal failure and commence dialysis should continue their usual steroid regimen without modification for the dialysis procedure. 1
The risk of adrenal insufficiency during peri-operative stress in dialysis patients on chronic steroids requires the same stress-dose considerations as in non-dialysis patients. 1
Contrast with Other Medications
The evidence clearly distinguishes steroids from renally cleared medications:
Drugs requiring dose adjustment in dialysis include ethambutol, pyrazinamide, levofloxacin, and aminoglycosides, which should be given after hemodialysis to avoid premature removal. 3
Drugs NOT requiring adjustment include rifampin, isoniazid, ethionamide, and corticosteroids, as they are not significantly cleared by dialysis. 3
Common Pitfalls to Avoid
Reducing steroid doses or adding extra doses based on dialysis timing is unnecessary and may lead to under-treatment of the condition being managed with steroids. 1
Do not confuse corticosteroids with vitamin D sterols (calcitriol, doxercalciferol), which DO require specific dosing considerations in dialysis patients but are managed based on calcium, phosphorus, and PTH levels rather than dialytic removal. 4
Avoid the misconception that all medications require adjustment in dialysis patients—the route of elimination (hepatic vs. renal) determines whether dose modification is needed. 1, 5