Lorcainide

13 interactions 1 explained in plain English
Dr. Brian Staiger, PharmD, BCPS
Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Jul 4, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

Most serious with: Amitriptyline Arsenic Trioxide Arsenic Trioxide Injection Disopyramide Dofetilide Dolasetron
13 Major
All (13) Major (13)

Major

Lorcainide Amitriptyline Elavil Explained An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Arsenic Trioxide Trisenox An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Arsenic Trioxide Injection Trisenox An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Disopyramide Norpace An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Dofetilide Tikosyn An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Dolasetron Anzemet An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Dolasetron Injection Anzemet An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Flecainide Tambocor® An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Foscarnet Injection Foscavir An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Isradipine DynaCirc® An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Mefloquine Lariam® An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Octreotide Bynfezia An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Lorcainide Octreotide Injection Bynfezia An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.