Answer
Pegasys (peginterferon alfa-2a) 135 microgram pre-filled syringes are listed in packs of 1 or 4 syringes, or a multipack of 12 (2 packs of 6), although not all pack sizes may be marketed.
Sources for this answer
- Pegasys 90 micrograms, 135 micrograms and 180 micrograms solution for injection in pre-filled syringepharmaand GmbH · emc · SmPC §6.5 Nature and contents of container · Version 2Document updated
Sources checked