Hi,
I know this is slightly late, but another suggestion would be to cut the number of tablets she has to take, or the frequency. A visit to the GP and ask him/her to go through her script, see what can be stopped, what could be combined etc so that she only has to take the medication twice a day instead of four times. Polypharmacy is a big problem for the elderly, and many GPs add extra medication without seeing the overall picture. All scripts should have a 'MOT' yearly I think,