Early and/or urgent recognition and diagnosis of cardiac arrhythmias are crucial as these may have serious and fatal implications if not treated promptly. Depending on the type of arrhythmia that patients present with, treatments provided will vary. However, the overarching goal remains the same: correct the abnormal rhythm and address any reversible causes. Medication selection is often based on patient­specic factors and may sometimes require hospital admission for therapy initia­tion. A thorough evaluation of patients’ previous interventions can guide appropriate initiation of therapies if they present with persistent or refractory arrhythmias. There is an opportunity for pharmacists to have a signicant impact on arrhythmia man­agement for patients. Pharmacists can aid in obtaining prior medication histories, appropriately recommending and dosing medications, and assessing for drug inter­actions with other concurrent medication use. Especially in emergent situations, pharmacists can advocate for appropriate dosing and timing of medications as well as correct preparations of the medication product. These actions are of tremendous benet to the medical team and ultimately promote patient safety and efcacy.