housecat, I looked at the ingredient stack and it seems like a decent multi vitamin.
It's loaded with vitamin B12 which will make her tinkle. Also that much vitamin B too late at night can cause bad dreams/nightmares so I'd limit the dose to 1 capsule in the am.
If she's tinkling too much it can also make her dehydrated. If she's elderly I'd make sure she gets enough fluids each day.