[DoreenMichele]

Put them in a locked firesafe in an accessible medicine dispenser. Put the key to the firesafe on a chain around grandma's neck.

[dnndev]

Thank you for the idea. If I could rely on her to remember to close the door to the safe and lock it every time it would be a good option.

[DoreenMichele]

You can't call her and walk her through the steps or something?

Put only one dose at a time in the firesafe so if it's left open, it's empty and no one cares?

[herdrick]

Could one of these help? https://www.google.com/search?q=locked+home+safe+that+can+be...

[useless_foghorn]

you could get a freezer door alarm similar to this: https://www.amazon.com/FRIDGGI-Fridge-Alarm-Seconds-white-pa...

[david422]

You can also buy RFID safes and RFID rings. That way you open the safe with the ring.