What Symptoms Should Be Expected After 3 Year Old Swallows Sudafed Pills?

My 3.5 year old, 40 pounds, may have swallowed 1 or 2 sudafed pills. I don't know for sure. She punched a bunch out of the package. 2 are unaccounted for. They may have been used by my husband. One looked like it had been in her mouth and spit out (the red color was faded). I asked her and she said no, she did not eat one. They taste awful, she spit out bad tastes pretty fast. This would have been about 3-4 hours ago. What would symptoms be if she was having a reaction. (She climbed into a cabinet in the kitchen and then hid with them behind the bed, I just found the evidence.)