A 5-step checklist to verify blister packs

Verifying a blister pack is mostly about comparing three things: what the prescriber ordered, what you planned to put in the pack, and what is actually in each bubble. Here is a routine many pharmacies use, written as a checklist you can adapt to your own procedures.

1. Start from the current source

Pull the latest report from your pharmacy management system, not last month’s printout. Prescriptions change between cycles: new medications, stopped ones, dose changes and new manufacturers.

2. Compare with the previous pack

List what changed since the patient’s last pack:

• medications added or stopped
• dose or timing changes
• a different NDC (a new manufacturer or package), and whether it is an equivalent product
• medications that moved to or from “as needed”

Each change should have a reason you can point to, such as a new prescription or a note from the prescriber.

3. Check the schedule bubble by bubble

For each time of day, check the number of tablets, and watch the schedules that are easy to get wrong:

• every-other-day doses: which day the cycle starts on
• alternating doses, such as 1 tablet one day and 2 the next
• medications that should not be in the pack at all, like as-needed or refrigerated items

4. Check what’s in the bubbles

Compare the tablets with the expected shape, colour and imprint for each NDC. A pill that looks different is often a manufacturer change, but it should always be explained before the pack is sealed.

5. Close the loop with the patient

Tell the patient about changes before they find a new pill in their pack. A quick confirmation, by phone or through a patient app, catches misunderstandings early, such as a medication the patient was told to stop.

Your pharmacist’s professional judgment and your state’s rules always come first; this checklist is a starting point, not a standard of practice.