Oral Corticosteroids for Acute Peripheral Vertigo
Oral corticosteroids should be offered to patients with acute vestibular neuritis (vestibular neuronitis) when initiated within 72 hours of symptom onset, with the strongest evidence supporting treatment within the first 24 hours for optimal vestibular recovery. 1
When Steroids Are Indicated
Vestibular Neuritis (Acute Unilateral Vestibulopathy)
- Primary indication: Acute vestibular syndrome with spontaneous vertigo, nystagmus, gait instability, and no auditory symptoms
- Timing is critical: Treatment within 24 hours yields 100% normal caloric recovery versus only 58% when treated between 25-72 hours 2
- The landmark NEJM trial demonstrated methylprednisolone significantly improves peripheral vestibular function recovery (62.4% improvement vs 39.6% with placebo, p<0.001) 1
Important caveat: The most recent 2025 RCT contradicts earlier findings, showing no benefit of corticosteroids on caloric recovery or subjective outcomes 3. However, this single trial should be weighed against multiple prior studies and meta-analyses showing benefit 4, 5. The 2023 GRACE-3 emergency medicine guidelines still recommend considering short-term steroids for vestibular neuritis 6.
Ménière's Disease
- Oral steroids have limited evidence: Only one small pilot study showed improvement in vertigo 7
- Intratympanic steroids are preferred over oral for active Ménière's disease not responsive to conservative treatment 7
- The 2020 AAO-HNS guideline identifies oral steroids as an area needing future research for acute Ménière's attacks 7
Recommended Dosing Regimen
Standard protocol (based on highest quality evidence):
- Methylprednisolone or prednisolone 50-100 mg/day (or 1 mg/kg) for 5 days 8, 9, 1
- Taper over 5-15 days (total treatment duration 10-20 days) 2, 8
- Alternative for severe nausea: Intravenous betamethasone 8 mg for first 1-2 days, then switch to oral 2, 8
The evidence consistently supports this dosing across multiple trials, with earlier treatment (within 24 hours) providing superior outcomes 2.
Contraindications and Precautions
Absolute contraindications:
- Active systemic fungal infections
- Hypersensitivity to corticosteroids
Relative contraindications (use with caution):
- Uncontrolled diabetes mellitus
- Active peptic ulcer disease
- Severe osteoporosis
- Uncontrolled hypertension
- Active psychiatric disorders
- Recent live virus vaccination
Adverse effects: The NNH (number needed to harm) is 4, with an OR of 10.9 for adverse effects versus control 4. Common side effects include hyperglycemia, insomnia, mood changes, and gastrointestinal upset.
Clinical Algorithm
- Confirm diagnosis: Acute vestibular syndrome with spontaneous vertigo, nystagmus, gait instability, no hearing loss
- Rule out stroke: Use HINTS examination (if trained), assess vascular risk factors, consider MRI if central features present 6
- Assess timing: Document hours since symptom onset
- If <24 hours: Strong recommendation for corticosteroids (best recovery rates) 2
- If 24-72 hours: Still offer corticosteroids (moderate benefit) 8, 1
- If >72 hours: Limited evidence for benefit; focus on vestibular rehabilitation
Key Pitfalls to Avoid
- Don't use steroids for BPPV: Epley maneuver is the treatment 6
- Don't delay treatment: Every hour matters, especially in the first 24 hours 2
- Don't add antivirals: Valacyclovir provides no additional benefit 1
- Don't use steroids alone: Combine with early vestibular rehabilitation for optimal long-term outcomes
- Don't confuse with Ménière's: Oral steroids have minimal evidence for Ménière's disease; consider intratympanic route instead 7
Evidence Quality Note
While the 2025 RCT 3 challenges the steroid paradigm, the weight of evidence from multiple meta-analyses 4, 5 and the landmark NEJM trial 1 supports steroid use. The 2025 study had recruitment challenges and may have been underpowered. Current guidelines still recommend considering steroids 6, and the dramatic benefit seen with early treatment (<24 hours) 2 supports their use when initiated promptly.