I'm confused are each of you talking about different drugs? Matty, it sounds like you are talking about Entocort and it sounds like alex_chris is talking about Pred. They are both steroids but the dosing instructions are much different, I thought.
Here is a dosing sheet for Entocort
http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=70532afa-4006-4883-feb2-927faaee8e20
You should only take up to 9mg of Entocort a day where with Pred I've heard of up to 60mg a day, that some people have been on before tapering.
Edit to add: Also, to answer your question I think it is always best to run things by your GI or consultant or GI nurse, in the event of med mishaps, new symptoms, etc.