IP isn't so bad, the worst part I've experienced is the boredom. Try to take books or anything that will keep your mind occupied for a few days, at least.

If you're just going to be starting meds as you say, then there's a likely chance you'll be in for a week or so. Part of that depends on your docs, and part of it depends on your insurance carrier.

Good luck, and let us know how it goes!