To identify the incorrect statement regarding Prasugrel, let's examine the options:
- Prasugrel is a prodrug: Prasugrel is indeed a prodrug. It is metabolized in the body to produce its active form, which then inhibits platelet aggregation. Hence, the statement "Not a prodrug" is incorrect.
- P2Y purinergic receptor blocker: Prasugrel functions by irreversibly inhibiting the P2Y12 receptor on platelets, which is a type of purinergic receptor. Therefore, this statement is correct.
- Has a strong antiplatelet activity: Prasugrel is known for its potent antiplatelet activity, making this statement correct.
- Causes intracranial hemorrhage in TIA patients: Prasugrel can increase the risk of bleeding, including intracranial hemorrhage, particularly in patients with a history of transient ischemic attacks (TIAs). This makes the statement correct or at least contextually accurate.
Consequently, the statement "Not a prodrug" is the only one that is incorrect.