Medications and Drugs
Brand Names: Quin-G
Generic Name: quinidine (Pronunciation: KWIH nih deen)
What is quinidine (Quin-G)?
Quinidine affects the way that the heart beats.
Quinidine is used to help keep the heart beating normally in people with certain heart rhythm disorders.
Quinidine may also be used for purposes not listed in this medication guide.
Quindine 324 mg ER-WAT
round, white, imprinted with 5538, DAN
Quinidine 200 mg-WAT
round, white, imprinted with 5438, DAN DAN
Quinidine 300 mg ER-TEV
round, white, imprinted with 93 175
Quinidine 300 mg-WAT
round, white, imprinted with 5454, DAN DAN
Quinidine Gluconate 324 mg-URL
round, white, imprinted with MP 66
What are the possible side effects of quinidine (Quin-G)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have a serious side effect such as:
Less serious side effects may include:
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about quinidine (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).
Before you take quinidine, tell your doctor if you have a slow heart rate, congestive heart failure, a serious heart condition such as "sick sinus syndrome," kidney or 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).
If you need surgery, tell the surgeon ahead of time that you are using quinidine. You may need to stop using the medicine for a short time.
Ask your doctor how to adjust your quinidine dose if needed. Do not change your medication dose or schedule without your doctor's advice.
Call your doctor at once if you have a serious side effect such as: vomiting and diarrhea, ringing in the ears, hearing loss, severe dizziness, changes in vision, pain behind your eyes, white patches or cloudiness in your eyes, pale or yellowed skin, dark urine, easy bruising or bleeding, wheezing, trouble breathing, or a new or a worsening irregular heartbeat pattern.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Get the latest treatment options.