Labor says it does not accept the appointments made by outgoing health minister Greg Hunt to the health technology assessment review reference committee.
In a statement, shadow minister Mark Butler said, "The Morrison Government waited until the very last minute to make this critical appointment to the HTA review."
Mr Butler added that if elected, Labor will consult with "relevant stakeholders" regarding Greg Hunt's appointment of Dr Peter Boxall AO to chair the review and "other proposed members appointments."
Health minister Greg Hunt announced the review's reference committee while Prime Minister Scott Morrison was meeting with Governor-General David Hurley to set the date for the next federal election.
The appointment of Dr Boxall has raised significant alarm given his longstanding record as a critic of the PBS and other public health programs.
Dr Boxall was a major contributor to the 2013 National Commission of Audit that recommended the virtual abolition of the PBS to be replaced by a system based on New Zealand's controversial PHARMAC.
The review's reference committee also includes recently retired senior Pfizer executive John Young, who previously served as Medicines Australia chair, Professor Andrew Roberts AO, PBAC chair Professor Andrew Wilson, the Department of Health's Adriana Platona PSM, as well as Dr Dawn Casey PSM from NACCHO and Ann Single from the Patient Voice Initiative.
Labor's statement means any work by the reference committee will need to stop during the election, including on potential terms of reference.