Disopyramide Phosphate

Norpace is an antiarrhythmic drug that works by blocking certain electrical signals in the heart that can cause an irregular heartbeat. It is used to treat serious irregular heartbeat patterns, such as persistent ventricular tachycardia.

• Norpace
• Norpace CR

• Disopyramide Phosphate
• Norpace
• Norpace CR
• Procainamide HCl
• quiNIDine Gluconate
• QuiNIDine Gluconate ER
• quiNIDine Sulfate
• quiNIDine Sulfate ER

• Capsule
• Long Acting Capsule
• Long Acting Capsule

• By mouth

Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.

Swallow the extended-release capsule whole. Do not crush, break, or chew it.

Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

You may need to carry identification that says you are taking disopyramide. Ask you doctor about this.

This medicine is not right for everyone. Do not use it if you had an allergic reaction to disopyramide or if you have certain blood circulation or heart problems. Ask your doctor about these problems.

Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, glaucoma, an enlarged prostate, trouble urinating, diabetes, heart rhythm problems, Wolff-Parkinson-White syndrome, or myasthenia gravis.

This medicine may cause the following problems: Increased risk of heart failureHeart rhythm problem, including QT prolongationChanges in blood sugar levels

Do not stop using this medicine suddenly without asking your doctor, or you could develop life-threatening heart problems.

This medicine may make you dizzy, drowsy, or lightheaded. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.

Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Keep all medicine out of the reach of children. Never share your medicine with anyone.

Disopyramide may make you dizzy or drowsy. Be careful if you drive a car or operate machinery.

Swelling of the legs and feet or weight gain

Yellowing of skin or eyes

Some medicines can affect how disopyramide works. Tell your doctor if you are using any of the following:Clarithromycin, erythromycin, oleandomycin, phenytoinBlood pressure medicine (including beta-blockers)Medicine for heart rhythm problems (including quinidine, procainamide, lidocaine, propranolol)

If you are taking verapamil, take it 48 hours after or 24 hours before taking disopyramide.

Do not drink alcohol while you are using this medicine.

Talk with your doctor before taking this medicine if you are pregnant or breastfeeding.

While taking this medicine, avoid becoming overheated during hot weather or exercising.

Standing-up slowly from a sitting or lying position can lessen the chance of getting dizzy.

Disopyramide may make you dizzy or drowsy. Be careful if you drive a car or operate machinery.

• Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
• Chest pain that may spread, nausea, trouble breathing, unusual sweating
• Lightheadedness, dizziness, fainting
• Shaking, trembling, sweating, hunger, confusion
• Slow, fast, pounding, or uneven heartbeat
• Swelling in your hands, ankles, or feet, tiredness
• Skin rash, severe itching or hives
• Swelling of the legs and feet or weight gain
• Yellowing of skin or eyes
• Decreased interest in sexual intercourse
• Decreased sexual ability or interest
• Dry mouth
• Stomach cramps or loss of appetite
• Dry mouth or throat
• Trembling or shaking
• Constipation, stomach upset
• Tiredness or weakness
• Constipation, bloating, gas