Reporting levels proposed and washout periods recommended after administration of GCs by different routes
| Reporting level (ng/ml) | Marker | |
| 15 | Triamcinolone acetonide | |
| 30 | Methylprednisolone | |
| 30 | All other GCs | |
| 45 | 6β-hydroxy-budesonide | |
| 60 | Betamethasone, dexamethasone | |
| 100 | Prednisolone | |
| 300 | Prednisone | |
| Administration route | GC | Washout period |
| Oral | All GC | 3 days |
| Except: triamcinolone | 10 days | |
| Intramuscular | Betamethasone, dexamethasone, methylprednisolone | 5 days |
| Prednisolone, prednisone | 10 days | |
| Triamcinolone acetonide | 60 days | |
| ‘Local’ injections (intra-articular, periarticular, peritendinous…) | All GCs | 3 days |
| Except: triamcinolone acetonide, triamcinolone hexacetonide, prednisolone, prednisone | 10 days |
GC, glucocorticoid.