No evidence of benefits from corticosteroids alone in Guillain–Barré syndrome

According to moderate-quality evidence, corticosteroids do not significantly hasten recovery from GBS or affect the long-term outcome, and low-quality evidence suggests oral corticosteroids delay recovery. There is moderate-quality evidence that intravenous corticosteroids given in combination with intravenous immunoglobulin might hasten recovery. There is no evidence of harm from corticosteroids except that increased blood glucose concentrations requiring insulin were significantly more common. Unexpectedly, hypertension was significantly less common.