Generalized Drug Eruption Secondary to Ticagrelor: A Case Report and Review of the Literature

Currently, guidelines recommend ticagrelor over clopidogrel as part of dual antiplatelet therapy with aspirin in treating individuals with acute coronary syndrome. As there is an increased usage of ticagrelor, it is important to keep in mind uncommon adverse events, including hypersensitivity skin reactions. To date, only a few studies have been published regarding ticagrelor-induced skin eruptions. Additionally, there is no consensus on antiplatelet therapy management after a hypersensitivity reaction to antiplatelet agents. Hereinafter, we describe a case of an 81-year-old female who presents with a diffuse erythematous hypersensitivity eruption, including palms and soles, secondary to ticagrelor use. Ticagrelor transitioned to clopidogrel, and the patient was started on steroid taper with an antihistamine. The patient's rash progressively improved after the treatment. Our case demonstrates a rare adverse effect of ticagrelor, which needs prompt diagnosis and switching to one of the thienopyridines to prevent thrombosis.