Medicines under lock and key

The trend has been going on for years; we are getting older and continue to live independently (sometimes out of necessity). This with the help of the necessary informal care and / or home care. An increasing appeal is being made to this. One of their main tasks is often taking care of their client's medicines. This requires a lot of responsibility from them. Safe storage of medicines is therefore a requirement.
You don't want your father or mother or client to take his medicines too often? With all its consequences.