Hi Tillygirl
Thank you for the suggestion - however, the difficulty dad has with mam and tablets is simply that she often just refuses to take them, she throws them at him, or spits them out in anger. I think she probably would not submit to medication via a syringe, off a spoon, etc, and probably wouldn't understand the concept of a tablet dissolving under her tongue
He thought he might be able to get a patch stuck onto her back while she was still asleep so she wouldn't be aware of it and it would be less distressing for her.
Thank you for your thoughts, much appreciated.