Jo Ann, prior to my heart cath, I think I was given Bendryl also. Perhaps the other medicine you are thinking of is Prednisone. Had to take that a couple of days prior. Everything was fine. If I have to have CAT scans or other tests of that nature, they use non-ionic dye. Hugs, Roberta ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn