Answer
Cardura XL 4 mg doxazosin tablets have a shelf life of 2 years in PVC/PVDC blisters with aluminium foil and 3 years in aluminium/aluminium blister strips.
Sources for this answer
- Cardura XL 4mg tabletViatris (formerly Mylan or Upjohn) · emc · SmPC §6.3 Shelf life · Version 25Document updated
Sources checked