Advancements in active and intelligent packaging technologies are helping to ensure that oral solid dose (OSD) drug delivery — which comprises both capsules and tablets — remains the most popular delivery method in use today. 

Moisture management in pharmaceutical packaging is a necessity; tablets and capsules in bottles with commonplace solutions like sachet or canister desiccants come to mind. But before considering package designs and desiccant options, it is helpful to look at the sources of moisture for these drug delivery products.