### Question
How is the term refundable single-dose container or single-use package drug defined?


### Answer
The term **refundable single-dose container or single-use package drug** is defined in *42 U.S.C. § 1395w* as the following:

> 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

#### Citation:
  - *42 U.S.C. § 1395w*
  - Heading: **CHAPTER 7-SOCIAL SECURITY > SUBCHAPTER XVIII-HEALTH INSURANCE FOR AGED AND DISABLED > Part B-Supplementary Medical Insurance Benefits for Aged and Disabled**

