Ischemic stroke treatment or treatment method

摘要

Formula (I): (wherein R1 represents hydrogen or a metabolic ester residue, R2 represents hydrogen or -R3-R4 (wherein R3 represents -SO3-, -CH2COO-, -COCOO- or -COR5COO- Wherein R5 represents lower alkylene or lower alkenylene, and R4 represents hydrogen or a metabolic ester residue), a pharmaceutically acceptable salt thereof, or a solvate thereof. A remedy for bleeding tendency caused by thrombus removal means, characterized by comprising as an active ingredient.