Ibuprofen

Hospital I delivered at prescribed me 800 mg of ibuprofen. Is it safe to take while breastfeeding?

Edit to add: I went to see my PCP today because of the headaches (I figured I had high blood pressure and was right) and she told me she couldn’t prescribe anything safe while breastfeeding. I figured the hospital wouldn’t give me something unsafe so I just wanted to make sure. I usually don’t take meds and just deal with the pain but these headaches are killer and I just want some relief.