Hello – We’re fellow patients here, so ultimately, your doctor needs to be OK with your dosing regimen.
I’ve more commonly heard of patients alternating doses every other day when the standard doses don’t produce that “just right” effect, rather than taking one big extra dose a week. However, I would ask your doc why she is suggesting this. Perhaps she is trying to keep you from needing two different prescriptions, or maybe she thinks that a once a week adjustment would be easier to remember.