The nurse develops a teaching plan for a 24-hour vaginal postpartum client with a firm fundus, scant lochia, and a 4th degree laceration. Her hemoglobin level is 10.0 gm/dl, and hematocrit is 30%. The mother is breastfeeding. Which medication would the nurse expect to be contraindicated?

D Ferrous sulfate 325 mg PO B Ibuprofen 600 mg PO A Docusate sodium 100 mg PO C Carboprost 0.2 mg PO