refundable single-dose container or single-use package drug

Except as provided in subparagraph (B), in this subsection, the term “refundable single-dose container or single-use package drug” means a single source drug or biological (as defined in subsection (c)(6)(D)) or a biosimilar biological product (as defined in subsection (c)(6)(H)) for which payment is made under this part and that is furnished from a single-dose container or single-use package.