What QT Prolongation Means

Some medications increase the risk your heart’s electrical system will short‑circuit, causing sudden cardiac death.

Hydroxychloroquine (HCQ) is an old drug used to treat malaria and lupus. When HCQ was proposed as a potential treatment for COVID-19, many cardiologists were quick to express concern over using a drug that prolongs the QT interval. Not knowing what this means, and eager for a cure, many people were willing to overlook this […]
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