Quinidine Sulfate
Side Effects
Serious negative effects of quinidine sulfate include:
- an unsteady heartbeat
decreased blood pressure
- dizziness
- lightheadedness
- Weakness
• sickness
• diarrhoea
Additionally, quinidine sulfate may result in less severe side effects, such as:
head pain
- Vision that is hazy
- feeling lightheaded
- Appetite loss
In patients with liver, kidney, or heart disease, quinidine sulfate should be used cautiously. Women who are nursing or pregnant shouldn't use it. There could be drug interactions with quinidine sulfate. Tell your doctor about all of your prescription, over-the-counter, and dietary supplements that you are taking.
Dosages
The drug quinidine sulfate is offered as a tablet and an injectable. Three times per day of 300 mg is typically the starting dose. Depending on the situation, the dose may be raised by 100–200 mg every six to eight hours. To prevent stomach upset, quinidine sulfate should be taken with food or milk.
Quinidine sulfate injection is administered intravenously. The typical starting dose is 10 mg/kg administered over 30 minutes, followed by a 2-4 mg/kg/hour maintenance infusion.
Precautions
In patients with liver, kidney, or heart disease, quinidine sulfate should be used cautiously. Women who are nursing or pregnant shouldn't use it. There could be drug interactions with quinidine sulfate.
Uses
Heart rhythm irregularities are treated with quinidine sulfate.