I did a bit of a search, and found a liquid multivitamin for renal patients called Nephronex, but I really couldn't find any other information on it about what it actually was. All I really found were places to buy it online
There's also a softgel. I'm not sure if that would help you or not. it's called Nephrocaps
http://chinese-school.netfirms.com/reviews/nephrocaps.htmlI'd still check with your pharmacist. They generally know what's out there when it comes to medications.