The phrase "pill pack" refers to a small container or package that holds individual pills or medication, usually organized by day and time of consumption. Full definition
The voluntary recall occurred based on an extremely small number of pill packs that were manufactured by an external contract manufacturer. (entrepreneur.com)
In most cases, breakthrough bleeding isn't something to be concerned about and will disappear within a few pill packs. (verywellhealth.com)
As for me, I'm happy my symptoms only lasted as long as it took to get a new pill pack. (health.com)