Are there sny over the counter potassium-channel blockers?


Because this would be extremely dangerous, as there potassium channels are quite ubiquitous (meaning in almost all cells). And the common potassium channel blocker are Class III anti-arrthymics (amiodarone, dronedarone, ibutilide, dofetilide, sotalol, vernakalant, and azimilide) and they can cause QT prolongation which can lead to fatal ventricular arrthymias. So it wouldn't be wish to have OTC.
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Amiodarone Dofetilide Kaochlor Kaon Kato Kay ciel Klor-con Klorvess Klotrix Potassium