Heparin (from Ancient Greek ηπαρ (hepar), liver), also known as unfractionated heparin.
see Heparin.
Periprocedural intravenous aspirin and unfractionated heparin during Endovascular treatment for acute ischemic stroke are both associated with an increased risk of symptomatic intracranial hemorrhage without evidence for a beneficial effect on functional outcome 1).