Rohrer (our Swiss blister machinery supplier) partnering with CSP developed a solution to apply desiccant into blisters for moisture sensitive tablets or capsules. The desiccants are heat staked onto the lid foil before the foil is sealed to the cavities.
There is no chemical reaction with the product, therefore there is no risk of contamination. The only effect of the desiccant touching the tablet or capsule is to pick up the moisture.
If you already have a blister line in your manufacturing site, this unit can be retrofitted to it.