A lactating woman has developed thromboembolism. Which drug should be prescribed if she wishes to continue breast-feeding?

In the case of a lactating woman who has developed thromboembolism and wishes to continue breastfeeding, heparin is the most appropriate medication to prescribe. Heparin is classified as an anticoagulant and is considered safe for use during breastfeeding.

One of the key benefits of heparin is that it does not significantly enter breast milk, making it a safer option for breastfeeding mothers compared to oral anticoagulants like warfarin or Coumadin, which can have effects on the infant if present in the milk. Heparin acts quickly and has a predictable response, which is crucial for managing thromboembolic conditions effectively while allowing the mother to breastfeed without risking the health of the infant.

Additionally, compared to aspirin, which has various contraindications in pregnancy and breastfeeding due to its effects on platelet function and potential bleeding risks, heparin remains the preferred choice in this situation. Hence, the decision to prescribe heparin allows for effective treatment of thromboembolism while supporting the lactation process.