Most often, you would have an allergic reaction to an antibiotic--where you
given one IV? This is often done if
labor is long and drawn out, and the mothers water has been broken for a long time. Perhaps you were allergic to something else they gave you.
Stadol does not work well if you take it too often, and usually does not work well at all after you have been given 1 or 2 doses. Demerol is not usually given any longer, due to side effects such as you experienced.