Question

which of the following types of medications must be stored in the freezer unless noted otherwise?
promethazine (phenergan) suppository
varicella vaccine
regular insulin (novolin r)
liquid antibiotics

Explanation:

Varicella vaccine is highly temperature - sensitive and typically requires freezer storage to maintain its potency and stability, while the other medications listed do not have such a general requirement for freezer storage.

Answer:

varicella vaccine