Clogrel prevent blood clots (thrombi) Tablet 75 mg 30 Tab It is taken by adults to prevent blood clots (thrombi) forming in hardened blood vessels (arteries), a process known as atherothrombosis, which can lead to atherothrombotic events (such as stroke, heart attack, or death). Do not use Clopidogrel: If you are allergic (hypersensitive) to clopidogrel or any of the other ingredients of this medicine If you have a medical condition that is currently causing bleeding such as a stomach ulcer or bleeding within the brain If you suffer from severe liver disease