Answer
Plegridy (peginterferon beta-1a) 125 microgram pre-filled pens are listed in boxes of two and multipacks of six (three packs of two); not all pack sizes may be marketed.
Sources for this answer
- Plegridy solution for injection in pre-filled pen and syringeBiogen Idec Ltd · emc · SmPC §6.5 Nature and contents of container · Version 12Document updated
Sources checked