I am not sure that 15 minutes or 30 minutes will really make a difference if you pre hydrate for a day. For me they always use these tiny little saline bags and the medicine is actually syringe push during that little bag. The difference between 15 and 30 in our infusion room is how fast they run the saline. Realistically with all the new space restrictions, I think it boils down to how many people are waiting to get chemo. I really do drink a few extra big glasses of water the day before and the day of, and have had zero side effects from this.
Is anastrazole your first hormone treatment? Have you had any side effects from it?