If drugs such as codeine are now on the hit list there is imho a good case for hitting companies up for more sick leave. Ailments that would could normally be treated with such drugs now cannot be treated so your recovery time maybe extended in the name of safety.
Maybe the industry can hit CASA with the bill?
If they are as concerned as they make out and drugs are a big problem they should take it up and compensate the industry for any such problems.