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Ticagrelor is well tolerated in single doses up to 900 mg. Gastrointestinal toxicity was dose-limiting in a single ascending dose study. Other clinically meaningful adverse reactions which may occur with overdose include dyspnoea and ventricular pauses (see Adverse Reactions).
In the event of an overdose, observe for the previously mentioned potential adverse reactions and consider ECG monitoring.
There is currently no known antidote to reverse the effects of ticagrelor, and ticagrelor is not dialysable (see Pharmacology: Pharmacokinetics under Actions, Precautions). Treatment of overdose should follow local standard medical practice. The expected effect of excessive ticagrelor dosing is prolonged duration of bleeding risk associated with platelet inhibition. Platelet transfusion is unlikely to be of clinical benefit in patients with bleeding (see Precautions). If bleeding occurs, appropriate supportive measures should be taken.
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