why can't you take ibuprofen while pregnant

Ibuprofen is generally not recommended during pregnancy because it can cause serious risks to the developing baby, especially after 20 weeks of pregnancy. Specifically, taking ibuprofen late in pregnancy can lead to premature closure of the ductus arteriosus, a vital blood vessel in the fetus that helps blood bypass the lungs while in the womb. If this vessel closes prematurely, it may cause high blood pressure in the baby's lungs and other heart problems. Ibuprofen can also reduce amniotic fluid levels, which is crucial for cushioning the baby and supporting lung development. Additionally, the use of ibuprofen during pregnancy has been linked with an increased risk of miscarriage, birth defects, and other complications, though some links are not fully confirmed. For these reasons, acetaminophen is generally recommended as a safer alternative for pain relief during pregnancy, and ibuprofen should only be taken if specifically advised by a doctor and under close medical supervision.