My understanding is the same as Susiebuddy's. I don't take Nexium or any other med like that on a regular basis, but sometimes I'll take Tums or something og the sort. Just so long as you're not taking them together it should be fine.
Status: Remission since May 2009!
Symptoms began in November 2008, ~4 weeks after giving birth to my son.
Diagnosed with pancolitis on 1/30/09
Currently taking Apriso (4 0.375g pills ONCE!! daily), mesalamine enema twice weekly, Natural Factors Ultimate probiotic 12/12 Formula, and Zoloft (25 mg).