Yes, we give her the drop every month and I believe it's a wormer drop as well?

And Fish Oil, haven't heard of feeding that to pets before. We've got heaps of it here, does it "get things moving" so to speak in pets?
Well it is recommended mainly for their skin health, but oil will help things move through a bit better too. I know tinned tuna in oil will do it for my dog -she loves tuna, so give it a go, can't hurt.