; and (10) abide by other terms as the Secretary may require. (c) Term and amount of contracts (1) Amounts A subscription contract under this section shall be for the sale to the Secretary of any quantity of the antimicrobial drug needed over the term of the contract under paragraph (2), at an agreed upon price, for a total projected amount determined by the Secretary that is not less than $750,000,000 and not more than $3,000,000,000, adjusted for inflation, accounting for the favored characteristics of the drug, as determined by the Secretary, in consultation with the Committee, under subsection (a)(2), and shall be allocated from the amount made available under section 6(a). Not later than 6 months after the subscription contract is granted under subsection (a), the Secretary shall provide payments for purchased drugs in installments established by the Secretary in consultation with the sponsor of the antimicrobial drug and in accordance with subsection (d)(3). Funds received by the sponsor may be used to support criteria qualification under subsection (b), the completion of postmarketing clinical studies, manufacturing, and other preclinical and clinical activities agreed to by the Secretary and sponsor in the contract. (2) Terms (A) Initial term The initial term of a contract under this subsection shall be no less than 5 years or greater than the greater of 10 years or the remaining period of time during which the sponsor has patent protections or a remaining exclusivity period with respect to the antimicrobial drug in the United States, as listed in the publication of the Food and Drug Administration entitled Approved Drug Products with Therapeutic Equivalence Evaluations . Payments may be in equal annual installments with the option to redeem 50 percent of the last year’s reimbursement in year 1 of the contract in order to offset costs of establishing manufacturing capacity, or another subscription arrangement to which the Secretary and sponsor agree. Subscription contracts shall remain in effect for such