Acetaminophen 500 mg while breastfeeding?

anna

I have a major headache and found this in my cabinet in a bag I THINK it's Acetaminophen 500 mg can I take this while breastfeeding? I looked online to make for sure that's what it is and I can't find a solid answer. can someone double check for me please before I pop it in my mouth thanks so much it has P500 on it