On Apr. 1, 2021, the FDA announced two revisions regarding the number of doses per vial available for the Moderna COVID-19 Vaccine.

The first revision clarified the number of doses per vial for the vials that were currently available, in that the maximum number of extractable doses was 11, with a range of 10-11 doses. The second revision authorized the availability of an additional multi-dose vial in which each vial contains a maximum of 15 doses, with a range of 13-15 doses that can potentially be extracted.