Prednisolone Dosage and Usage
Prednisolone and prednisone are pharmacologically equivalent and interchangeable at the same dosage, with the choice between them typically depending on geographic availability rather than clinical superiority. 1
Pharmacological Equivalence
- Prednisone and prednisolone are equivalent medications used at identical doses, with both having been validated in randomized controlled trials depending on country of origin. 2, 1
- Prednisone is more commonly prescribed in the United States, while prednisolone predominates in Europe and other regions. 1
- 5 mg prednisolone is equivalent to 20 mg hydrocortisone or 4 mg methylprednisolone. 2, 3
- For comparison purposes, 15 mg prednisolone equals 15 mg prednisone, 12 mg methylprednisolone, 60 mg hydrocortisone, 2.25 mg dexamethasone, or 2.25 mg betamethasone. 3
Standard Dosing by Indication
Nephrotic Syndrome and FSGS
- Initial dose: 1 mg/kg/day (maximum 80 mg) as a single daily dose, or 2 mg/kg alternate-day (maximum 120 mg). 2, 1
- Maintain the initial high dose for a minimum of 4 weeks if complete remission is achieved, and for a maximum of 16 weeks if complete remission is not achieved. 2
- After achieving remission, taper slowly over up to 6 months total. 2
Asthma Exacerbations
- Adults: 40-60 mg/day as a single dose or divided into 2 doses for 3-10 days. 2
- Children: 1-2 mg/kg/day in single or divided doses (maximum 60 mg/day) for 3-10 days. 2, 3
- No tapering is required after short courses (3-10 days) as there is no evidence that tapering prevents relapse. 2, 3
Tuberculous Pericarditis
- Adults: 60 mg/day for 4 weeks, then 30 mg/day for 4 weeks, then 15 mg/day for 2 weeks, then 5 mg/day for the final week (11 weeks total). 2
- Children: approximately 1 mg/kg body weight initially, with proportionate tapering as described for adults. 2
- This regimen reduces mortality (4% vs 11% with placebo) and need for repeated pericardiocentesis. 2
Rheumatoid Arthritis (Low-Dose Maintenance)
- Low-dose therapy: 5-10 mg daily or 5 mg twice daily controls inflammatory features in early polyarticular disease. 4, 5
- Doses ≤15 mg daily show marked superiority over placebo for joint tenderness (12 fewer tender joints), pain, and grip strength (22 mm Hg improvement). 6, 5
- Low-dose prednisolone is also superior to NSAIDs for joint tenderness (9 fewer tender joints) and pain. 6, 5
COPD Exacerbations
- 5 days of systemic corticosteroid treatment is sufficient and equivalent to longer 10-14 day courses. 7
- Typical dosing: 30-40 mg/day prednisolone for 5 days. 7
- Shorter courses reduce cumulative adverse effects without compromising efficacy for treatment failure, relapse risk, or time to next exacerbation. 7
Severe Urticaria/Angioedema
- Emergency treatment: 50-100 mg prednisolone equivalent as a single dose. 8
- For severe cases requiring higher doses, >250 mg may be administered orally with symptom remission of at least 50% occurring within 30 minutes. 8
- Liquid formulations are advantageous when dysphagia is present. 8
Pemphigus Vulgaris
- Initial therapy: 1-2 mg/kg/day (most clinicians use 1 mg/kg/day). 2
- For milder cases, 0.5-1 mg/kg/day may be appropriate. 2
- If no response within 5-7 days, increase dose in 50-100% increments until disease control is achieved (defined as no new lesions and healing of pre-existing ones). 2
- Treatment failure is defined as lack of disease control despite 3 weeks of 1.5 mg/kg/day prednisolone. 2
Sudden Sensorineural Hearing Loss
- Prednisone 1 mg/kg/day (usual maximum 60 mg/day) for 7-14 days, then taper over a similar period. 2
- Alternative regimens: maximum dose for 4 days, followed by 10 mg taper every 2 days. 2
- Equivalent doses: 60 mg prednisone = 48 mg methylprednisolone = 10 mg dexamethasone. 2
- Treatment should ideally begin within the first 14 days, though benefit has been reported up to 6 weeks. 2
Pediatric Dosing Principles
- General range: 0.14-2 mg/kg/day in 3-4 divided doses (equivalent to 4-60 mg/m²/day BSA). 3
- Nephrotic syndrome standard regimen: 60 mg/m²/day in 3 divided doses for 4 weeks, followed by 40 mg/m²/day as single-dose alternate-day therapy for 4 weeks. 3
- For asthma uncontrolled by inhaled corticosteroids: 1-2 mg/kg/day in single or divided doses. 3
Perioperative Management in IBD
- Patients on corticosteroids for >4 weeks prior to surgery should receive equivalent intravenous hydrocortisone while nil by mouth perioperatively. 2
- For elective surgery, corticosteroids should be stopped or minimized preoperatively to reduce postoperative complications. 2
- Doses ≥40 mg prednisolone are associated with increased risk of postoperative infections, VTE, and anastomotic leak. 2
- There is no value in increasing steroid dosage to cover perioperative stress, as demonstrated in randomized trials. 2
- After complete resection of active disease, implement standardized taper protocols to avoid inappropriate prolongation of steroids. 2
Tapering Guidelines
- For courses >2-3 weeks, gradual tapering is essential to prevent adrenal insufficiency. 3
- Initial tapering should aim to reduce to 10 mg/day within 4-8 weeks, then slower tapering at 1 mg every 4 weeks. 1
- Short courses (≤7 days) typically do not require tapering. 2, 3
- If stopping after long-term therapy, withdraw gradually rather than abruptly. 3
Important Caveats and Monitoring
- Dosage requirements are highly variable and must be individualized based on disease severity and patient response. 3
- Constant monitoring is needed for changes in clinical status, disease exacerbations, or exposure to stressful situations. 3
- For patients with relative contraindications (uncontrolled diabetes, psychiatric conditions, severe osteoporosis), consider alternative immunosuppressive agents. 2
- Most serious adverse effects occur with chronic use; short courses (10-14 days) have acceptable and manageable side effects. 2
- With concomitant calcium and vitamin D supplementation and DEXA monitoring, osteopenia risk from low-dose prednisolone is minimal. 4
- Using low-dose prednisolone without NSAIDs reduces risk of gastric ulceration and bleeding. 4