The National Party says the Government should give district health boards the extra money they need to fund 12 months of the breast cancer drug, Herceptin.
The State drug-buying agency Pharmac is meeting in Wellington on Wednesday to reconsider a decision to subsidise treatment with the drug for only nine weeks.
Associate health spokesperson Jackie Blue says a National-led Government would find the money to extend treatment with Herceptin.
Dr Blue says the supplier of Herceptin, Roche, has slashed the cost of the drug under a longer treatment plan.