Retroperitoneal haematoma after paracetamol increased anticoagulation.

摘要

Drugs containing paracetamol are widely used as analgesics but may result in increased anticoagulation in patients who take warfarin, the mechanism being unclear. Retroperitoneal haemorrhage is a serious and well described complication in patients who develop increased anticoagulation; this may result in a femoral neuropathy. Both conservative and surgical treatments have been advocated for this complication.