I've been using budesonide enemas by AstraZeneca because the mesalamine ones started causing bleeding for me. I'm in Canada though, so not sure what's available in the states. The ones I use aren't pre-mixed - I get them 7 enemas per box. The enema bottles have a solution of NaCl, preservatives and water. There's also a pack of budesonide tablets - you take the lid off the bottle, drop a tablet in and shake until the tablet dissolves. After mixing, the budesonide is 0.02mg/mL. The enemas are 100mL, so you get 2mg of the glucocorticosteroid per enema.
Ottawa, Ontario, Canada
-F/33 -diagnosed June 2006
-last 25cm of colon affected
-xylocaine enemas put me in remission
-Asacol 2 800mg pills 2x/day
-budesonide enemas every 4-5 days