Answer
Xanax (alprazolam) 500 microgram tablets should be stored at no more than 25°C in the original package to protect them from moisture.
Sources for this answer
- Xanax 500 microgram TabletsViatris (formerly Mylan or Upjohn) · emc · SmPC §6.4 Special precautions for storage · Version 25Document updated
Sources checked