ProQuad is supplied as follows:
- A package of 10 single-dose vials of lyophilized vaccine (package A)
- A separate package of 10 prefilled syringes of sterile diluent (package B) OR a separate package of 10 vials of sterile water diluent (package B)a
aNot all presentations may be available.
Storage and handling
- To maintain potency, ProQuad must be stored frozen between –58ºF and +5ºF (–50ºC to –15ºC). Use of dry ice may subject ProQuad to temperatures colder than –58ºF (–50ºC).
- Before reconstitution, store the lyophilized vaccine continuously in a reliably maintained freezer (eg, chest, frost-free) for up to 18 months.
- ProQuad may be stored at refrigerator temperature (36ºF to 46ºF, 2ºC to 8ºC) for up to 72 hours prior to reconstitution. Discard any ProQuad vaccine stored at 36ºF to 46ºF that is not used within 72 hours of removal from 5ºF (–15ºC) storage.
- Protect the vaccine from light at all times since such exposure may inactivate the vaccine viruses.
- IF NOT USED IMMEDIATELY, THE RECONSTITUTED VACCINE MAY BE STORED AT ROOM TEMPERATURE, PROTECTED FROM LIGHT, FOR UP TO 30 MINUTES.
- DISCARD RECONSTITUTED VACCINE IF IT IS NOT USED WITHIN 30 MINUTES.
- DO NOT FREEZE RECONSTITUTED VACCINE.
- Diluent should be stored separately at room temperature (68°F to 77°F, 20°C to 25°C), or in a refrigerator (36°F to 46°F, 2°C to 8°C).
- For information regarding stability under conditions other than those recommended, call 800.MERCK.90 (800.637.2590).