Quin-G

You should not take this medication if you have ever had an allergic reaction to quinidine or quinine (Qualaquin), including easy bruising or unusual bleeding. You should not take quinidine if you have myasthenia gravis or certain heart conditions, especially "AV block" (unless you have a pacemaker).

To make sure you can safely take quinidine, tell your doctor if you have any of these other conditions:

• slow heart rate;

• congestive heart failure;

• a serious heart condition such as "sick sinus syndrome";

• kidney disease;

• liver disease;

• low levels of potassium or magnesium in your blood;

• a history of "Long QT syndrome";

• if you are on a low-salt diet; or

• if you have ever had an abnormal electrocardiogram or ECG (sometimes called an EKG).

FDA pregnancy category C. It is not known whether quinidine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.

Quinidine can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Do not change the amount of salt in your diet unless your doctor tells you to.

Grapefruit and grapefruit juice may interact with quinidine and lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor. Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor.