Substances where repeat doses of activated charcoal may prove useful in enhancing clearance9
| *Experimental and clinical studies; †volunteer studies; ‡little firm evidence. |
| Carbamazepine* |
| Barbiturates* |
| Dapsone* |
| Quinine* |
| Theophylline* |
| Salicylates‡ |
| Amanita phalloides (death cap mushroom)‡ |
| Slow release preparations |
| Digoxin† and digitoxin† |
| Phenylbutazone† |
| Phenytoin† |
| Sotalol† |
| Piroxicam† |