Gyne Lotrimin

Quinidine Medication - Uses & Side Effects

Quinidine is an antiarrhythmic medication and it is used to correct heart rhythm disturbances. Quinidine decreases the speed of electrical conduction in the heart muscle. It prolongs the electrical phase during which heart muscle cells become electrically stimulated.

Quinidine Dosage

  • The usual starting dosage is 300 milligrams quinidine every 8 to 12 hours.

Uses of Quinidine

  • Quinidine is used to treats various abnormal heart rhythms such as atrial fibrillation or flutter and life-threatening ventricular arrhythmias.
  • It may also be used to treats other medical conditions those are listed in the medication guide.

Side Effects of Quinidine

Before taken Quinidine medicine, you should discuss the side effects with your doctor.  If any develop or change in intensity, then you should inform your doctor as soon as possible. Because only your doctor can determine if it is safe for you to continue taking Quinidine. Side effects may include:

  • Abdominal pain
  • Diarrhea
  • Hepatitis
  • Inflammation of the esophagus
  • Loss of appetite
  • Nausea
  • Vomiting
  • Blurred or double vision
  • Confusion
  • Headache
  • Vomiting

Warnings and precautions before taking Quinidine:

  • If you are taking this medicine, then it may cause various types of heart irregularity. It can also cause the condition known as heart block, and so you should be used this medication with extra caution if you have partial heart block.
  • If you have kidney or liver disease, then you should tell your doctor. So you should also be used this medicine with extra caution.

Drug Interaction :-

If you are taking Quinidine with certain other drugs, then the effects of either could be increased, decreased, or altered. So it is especially important to check with your doctor before combining Quinidine with the following:

  • Amiodarone
    Antispasmodic drugs such as Bentyl
  • Diltiazem
  • Felodipine
  • Haloperidol
  • Ketoconazole
  • Major tranquilizers such as Mellaril and Thorazine
  • Mexiletine
  • Nicardipine
  • Verapamil
  • Warfarin

After taken Quinidine if you feel that overdose is suspected, then you should contact with your doctor immediately. Because it may lead to another serious effect. Symptoms of a Quinidine overdose include:

  • Abnormal heart rhythms
  • Blurred or double vision
  • Confusion
  • Delirium
  • Diarrhea
  • Headache
  • Loss of hearing
  • Ringing in the ears
  • Vertigo
  • Vomiting

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