As far as I'm aware, it depends on which insurance company you choose. There are a few options, and different tier plans. When you look on the benefits page, you can type in the prescription and see if itll pop up and if your insurance of choice covers it (Not all scripts show up. I'm a type one diabetic, and some of my scripts dont show.)

You HAVE to enroll before the cutoff date which is I think the 23rd (Unless you have a life changing event.) Once enrolled, insurance kicks in, in October.

To add on: eligible for Ben after 90 days. Must work 20 hours a week to be eligible. You should be able to opt in after 90 days, but I'm not too sure.