Medications and Drugs
Brand Names: Tambocor
Generic Name: flecainide (Pronunciation: FLEK a nide)
What is flecainide (Tambocor)?
Flecainide is in a group of drugs called Class IC anti-arrhythmics. It affects the way your heart beats.
Flecainide is used in certain situations to prevent serious heart rhythm disorders.
Flecainide may also be used for other purposes not listed in this medication guide.
Flecainide 100 mg-BAR
oval, white, imprinted with b, 860 100
Flecainide 100 mg-MYL
round, white, imprinted with 85 10, M
Flecainide 100 mg-ROX
round, white, imprinted with 54 070
Flecainide 150 mg-BAR
oval, white, imprinted with b, 861 150
Flecainide 150 mg-MYL
oval, white, imprinted with 85 15, M
Flecainide 150 mg-ROX
oblong, white, imprinted with 54 150
Flecainide 50 mg-BAR
round, white, imprinted with b, 859
Flecainide 50 mg-MYL
round, white, imprinted with 85 05, M
Flecainide 50 mg-ROX
round, white, imprinted with 54 024
Tambocor 50 mg
round, white, imprinted with 3M, TR 50
What are the possible side effects of flecainide (Tambocor)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty 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. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about flecainide (Tambocor)?
You should not use this medication if you are allergic to flecainide, or if you have certain heart conditions, especially "AV block" (unless you have a pacemaker).
Before using flecainide, tell your doctor if you have congestive heart failure, a heart condition called "sick sinus syndrome," an electrolyte imbalance, liver disease, kidney disease, if you have a pacemaker, or if you have had a heart attack within the past 2 years.
You will need to receive your first few doses of flecainide in a hospital setting in case the medication causes serious side effects. Your heart rate will be constantly monitored using an electrocardiograph or ECG (sometimes called an EKG). This machine measures electrical activity of the heart.
Call your doctor at once if you have a serious side effect such as weak pulse, slow breathing, fast or uneven heartbeat, feeling like you might pass out, feeling short of breath, swelling, rapid weight gain, confusion, extreme thirst, increased urination, muscle weakness, or jaundice (yellowing of the skin or eyes).
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.
Pill Identifier on RxList
- quick, easy,
Find a Local Pharmacy
- including 24 hour, pharmacies