You are here Home Variations to prescription medicines - excluding variations requiring the evaluation of clinical or bioequivalence data Links to information on variations to prescription medicines and biologicals. Last updated 10 July 2019 Listen Print Share LinkedIn Twitter Facebook Email Loading... Guidance Process Variations to prescription medicines - excluding variations requiring the evaluation of clinical or bioequivalence data: Process guidanceHow to make variations to existing ARTG entries for prescription medicines Chemical entities Variations to prescription medicines - excluding variations requiring the evaluation of clinical or bioequivalence data; Appendix 1: Variation types - chemical entitiesOutlines types of variations and changes that can be made to chemically derived (non-biological) prescription medicines currently on the ARTG Biological medicines Variations to prescription medicines; Appendix 2: Variation types - biological medicinesOutlines types of variations and changes that can be made to biological medicines currently on the ARTG Forms Making variations to registered prescription medicines: The Variation e-form is available through the TBS portal. Frequently Asked Questions Answers to some frequently asked questions on using the prescription medicines Variation e-form. Topics Prescription medicines