The Department of Health and Aged Care made amendments to the National Health (Highly Specialised Drugs Program) Special Arrangement 2021 (PB 27 of 2021) via Legislative Instrument F2026L00403. Schedule 1 of the arrangement contains the specific amendments, which typically include updates to listed drugs, indications, or associated conditions under the HSD program. This is an 'April Update' amendment to the existing program framework.

Healthcare providers, pharmacies, and prescribers participating in the Highly Specialised Drugs Program should review the updated Schedule 1 amendments to ensure compliance with any modified drug listings, indications, or conditions. Patients accessing HSD program medicines should be informed of any changes that may affect their treatment arrangements. The amendment is effective from 31 March 2026.