Years ago, when my oldest was a wee todler, he managed to open the child proof cap on a small bottle of mixed meds my wife carries in here purse. It didn't appear that he ingested any, but we called the local ER as a precaustion and they directed us to a poison center. As my wife listed the meds, he stopped her as soon as she mentioned Tylenol and instructed us to give him Oil of Ipacac [spelling?], which caused violent vomiting for the next hour. He was so exhausted, that he literally wqas falling asleep between heaves near the end of the hour when it slowed down. <br><br>It surprised me at the time that with all of the prescription allergy meds my wife carries, it was the over the counter tylenol that caused the most concern.