I would call your GI asap and find out the correct dose and taper instructions. Shame on your pharmacy for not calling them to get the proper instructions!! Also, if you're not flaring why start Pred? You really need to talk to your doctor and ask questions. Don't be afraid to question them so you understand their line of thinking.
Female, Age 38
Diagnosed w/c.diff 7/02 when pregnant w/1st and only child during 2nd trimester(wasn't on antibiotics)
C.diff flare within weeks of delivering baby 1/03, Diagnosed with UC 2/03
Acidophillus, Sacchromyces Boulardii, Oil of Oregano