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M-M-R II is supplied as a single-dose vial of lyophilized vaccine and a syringe of diluent.
To maintain potency, M-M-R II must be stored between -50°C and +8°C (-58°F to +46°F). Use of dry ice may subject M-M-R II to temperatures colder than -50°C (-58°F).
Protect the vaccine from light at all times, since such exposure may inactivate the viruses.
Before reconstitution, store the lyophilized vaccine at 2°C to 8°C (36°F to 46°F). The diluent may be stored in the refrigerator with the lyophilized vaccine or separately at room temperature. Do not freeze the diluent.
It is recommended that the vaccine be used as soon as possible after reconstitution. Store reconstituted vaccine in the vaccine vial in dark place at 2°C to 8°C (36°F to 46°F) and discard if not used within 8 hours.
