| High PO2 levels help produce an efficient decompression profile providing they are balanced against oxygen toxicity. |
| Manganese deficiency is a common disorder on alkaline soils while its toxicity normally only occurs on strongly acid soils. |
| There are no toxicity issues with water-soluble vitamins, because they flush out of the body. |
| The combination of zalcitabine and didanosine or stavudine is not recommended because of overlapping toxicities. |
| Management of toxicities in the community requires close liaison with the hospital team, and severe toxicity requires immediate admission. |
| Methotrexate and chlorambucil have been used as steroid-sparing agents, but have toxicities of their own. |
