It started as a favor. You were already driving past the pharmacy on the way back from pickup, so you said, "I'll grab it." Then it happened again. Then it became the thing you did on Tuesdays, and nobody remembers agreeing to it. You are not the only one who has noticed the pattern, and it is one of the easiest jobs to miss in a split week because it never looks big enough to write down.
Local option (paid placement): New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.
How to tell it has become yours
Check the signs before you check the calendar. You know the pharmacy's hours without looking. The refill request comes through your phone, not through a list anyone else keeps. When your mom's household runs low on something, the first person she calls is you. If you can answer all three of those questions with a yes, the errand has an owner, and that owner is you whether or not anyone said so.
Count it for two weeks
Write down every pharmacy trip for two weeks. Note the day, the time it took including the line and the parking, who made the trip, and whether the trip was on your way somewhere or a stop you had to add. This is not about proving you are overloaded. It is about seeing the real size of the job so you can decide what to do with it.
Ask what the pharmacy can actually do
Many pharmacies let a family member request refills by phone or through an online account, and some offer a pickup window or a way to have the order held for a different person. Ask the pharmacist what options exist for your mom's pharmacy. Ask whether another adult in the family can be listed to pick up. Ask what they need from the person collecting, such as ID or a signed form. The answers will tell you whether this errand can be shared, moved to a different day, or handed to a non-medical helper as a simple pickup.
Decide who owns it on paper
Once you know the options, write the errand into a shared list with a name, a day, and a backup. Medication decisions, questions about doses, and anything about what goes into your mom's routine stay with the family, her doctor, and her pharmacist. The refill run is only the errand of getting the bag from the counter to the house, and that is the piece that can have a clear owner.
The goal is not to stop helping. It is to make the help visible so it stops arriving as a surprise on your Tuesday afternoon.