My friend drank alka seltzer plus she is on blood thinner (plavix (clopidogrel) 75mg) what happen i put one pack alka seltzer plus in the cup with the water it dissolve, she thought i brought a cup of water to her and she put one pack in the water now ev

Hopefully : Hopefully you called the poison control center or received some other advice. Plavix and tylenol (acetaminophen) (acetamenophen) are two totally different medications. Assuming your friend is otherwise healthy without a significant drinking history, taking a mildly excessive amount of tylenol (acetaminophen) one time probably will not hurt her. However, she should abstain from tylenol (acetaminophen) containing products for the rest of the day.