Description

Quinidine sulfate is an antiarrhythmic medication used to treat irregular heartbeats. It works by helping to restore the heart’s normal rhythm. Quinidine sulfate is available in tablet and injectable form.

Side Effects

Quinidine sulfate can cause serious side effects, including:

– irregular heartbeat

– low blood pressure

– fainting

– dizziness

– fatigue

– nausea

– diarrhea

Quinidine sulfate can also cause less serious side effects, such as:

– headache

– blurred vision

– lightheadedness

– loss of appetite

Quinidine sulfate should be used with caution in people with heart disease, kidney disease, or liver disease. It should not be used by pregnant or breastfeeding women. Quinidine sulfate may interact with other medications. Be sure to tell your doctor about all medications you are taking, including over-the counter drugs and supplements.

Dosages

Quinidine sulfate is available in tablet and injectable form. The usual starting dose is 300 mg three times daily. The dose may be increased by 100-200 mg every six to eight hours as needed. Quinidine sulfate should be taken with food or milk to avoid stomach upset.

Quinidine sulfate injection is given as an infusion into a vein. The usual starting dose is 10 mg/kg over 30 minutes, followed by a maintenance infusion of 2-4 mg/kg/hour.

Precautions

Quinidine sulfate should be used with caution in people with heart disease, kidney disease, or liver disease. It should not be used by pregnant or breastfeeding women. Quinidine sulfate may interact with other medications.

Uses

Quinidine sulfate is used to treat irregular heartbeats.