Without limiting the power of the Minister under section 85AB, the Minister may, by legislative instrument, revoke or vary a determination under section 85AB if:
(a) under section 99AEH, the Minister revokes or varies a determination under subsection 85(6) in relation to a brand (the delisted brand ) of a pharmaceutical item (the existing item ); and
(b) before the revocation or variation came into force, subsection 99AEC(2) applied to the delisted brand of the existing item; and
(c) after the revocation or variation comes into force, there is only one listed brand of a pharmaceutical item (the remaining item ) that is bioequivalent or biosimilar to the delisted brand of the existing item; and
(d) the remaining item is a combination item; and
(e) the drug in the remaining item was not on F1 or F2 on the day before subsection 99AEC(2) began to apply to the delisted brand of the existing item.