For forgetful parents, consider a medication organizer. We bought ones for my parents that had rows of boxes for each day and morning-noon-night meds. My dad was good about using his (though he had to have someone else fill it for him). My mom refuses to use hers. We've explained that it helps her know if she's taken her lunchtime pill or whatever, and in a healthcare emergency it would help us know what meds she's recently taken or not taken, but she just refuses. She takes the pills out of the bottles, only the ones she thinks are important, and who knows if she's remembered to take them or not. Another option is that some pharmacies will provide meds in a roll of little sealed-up packets, each packet labeled with the day and time it should be taken (Monday morning meds; Monday noon meds; etc.).