inside your pill packet there should be a small sheet which has all that kind of information on it. Without the exact name and brand it's difficult to be 100% sure of how long you should wait. I can't recall how long it takes to become effective since it's been 6 years since I first started. I think a week sounds about right, but the booklet inside the pill packet should provide you with that information. Also, if you type the exact name into google, information like that will be available on the manufacturer's website.
Good luck
