We receive occasional orders (1-2 times/year) for a 1% alum bladder irrigation. Our facility meets compliance for medium risk level compounding. I cannot find a supplier of a sterile alum powder. The only option that I see is to order from a compounding pharmacy, but with typical rates of 300ml/hr, it is difficult to have a sufficient supply on hand.
I believe alum irrigation is a high risk compounded item per USP 797. Several years ago, I had heard of third parties compounding this for hospitals, but I am not sure what the situation is now. I have looked out to the UIC for information and here is a link with some general information.
Harry is correct that compounding Alum Bladder irrigation solutions are high-risk level CSPs. Using any non-sterile powder is considered high-risk level compounding and following all of the appropriate USP 797 activities will be necessary.
We ended up ordering alum 1% 2 L bags from a compounding pharmacy. The bags have a shelf-life of 180 days at room temp. I bet we end up wasting most bags, but our urologists were insistent that the drug be available to them.