Hey there, it was about 10 days for us, I generally advise mums that give it two weeks. It should start working in a couple of days in theory, but you just don't notice a lot of changes in their behaviour until the 2 weeks.

Losec, has been our lifesaver. It works well, thought the administering can be a pain. If you have the compound, get it made up every 2 weeks for maximum effect.

What dose are you on?

I just noticed you are in Perth, me too!