Patients receiving subcutaneous immunoglobulin (SCIG) should consider how the product is stored when the weather is hot. Here are some helpful tips from the Immune Deficiency Foundation Nurse Advisory Committee. These recommendations may also be helpful for any other medications you receive by mail.
The information from the manufacturers of the subcutaneous immunoglobulin (SCIG) products available for use currently (Gammagard©, Gamunex-C©, Hyqvia© and Hizentra©) says that the products should be stored at room temperature (25ºC or 77ºF) and clearly states that any product that has been frozen should never be used. Unfortunately, there are no official published data available from these manufacturers that indicate if the product is still good if the temperature consistently exceeds 77ºF.
If you have questions, submit your questions through Ask IDF or call 800-296-4433.