Tactile Medicine Package / Medical Equipment

This design is for the pill blister package that will display a tactile message not to take the drugs once enough time passes. The material would consist of two layers, with the top containing the original drug’s info label and a bottom layer with ink that slowly seeps into the top.
In addition to the visual message, there is a tactile clue will appear after enough time passes. The tactile warning message will become clear as a raised cross pattern and the visual impaired patient can immediately know to get a fresh refill.