Prescription Icon Prescription Required
IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.


What is Tambocor (Flecainide) prescribed for?

This medication is used to treat certain types of irregular heartbeat, such as persistent ventricular tachycardia and paroxysmal supraventricular tachycardia.  At times, an issue with your heart’s electrical signals can make it speed up, even if you are not exercising or anxious. Although most of the time it is not a serious condition, but having a racing heart for no reason can be a bit scary. Regardless, you should still speak with your doctor regarding this problem. Since when you heart pumps to quickly, it cannot pump out enough blood to meet the needs of your body.

This medicine is used to restore a normal heart rhythm and maintain a regular, steady heartbeat. It can also be used to prevent certain types of irregular heartbeat, such as atrial fibrillation, from returning. Flecainide is known as an anti-arrhythmic drug. And it gets to work by blocking certain electrical signals in the heart that can cause the irregular heartbeat. Treating this problem can decrease the risk for blood clots, and this effect can reduce the risk of heart attack or stroke.

Read up on any of the information given to you, if you have any questions regarding this medication or of your condition, consult your doctor.

This medication is to be taken by mouth, with or without food.  Usually taken twice a day or as directed by your doctor. Remember the dosage is based on your age, medical condition, and response to the treatment, and any other medications you may be taking.

Use this medication on a regular basis to gain the most benefit from it, therefore you should take it at the same time each day.

But if your condition does not improve or worsens, notify your doctor at once.


Before taking this medication, it is best to advise your doctor if you are allergic to Flecainide; or to any other medications or allergies in general. This product may contain inactive ingredients, which can cause allergic reactions or other problems.

You should also let your doctor know of all of your medical history. Especially if you have ever dealt with any of these experiences in the past; kidney problems, liver problems, other heart problems (such as previous heart attack, heart pacemaker).

Flecainide may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can rarely cause serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.

The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using flecainide, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).

Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using flecainide safely.

Side Effects

While minor, some of these side effects may occur. They are as follows; Dizziness, vision problems (such as blurred vision, problems focusing, seeing spots), headache, nausea, shaking, tiredness, or weakness may occur. However if any of these persist or worsen, it’s best to speak with your doctor right away.

Tell your doctor right away if you have any serious side effects, including: new or worsening symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain).

Get medical help right away if you have any very serious side effects, including: faster/more irregular heartbeat, severe dizziness, fainting.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.


What is Flecainide?

This medication is used to treat various types of serious irregular heartbeat, and it is used to restore a normal heart rhythm and maintain a regular, steady heartbeat. When taken, this medication is put to work by blocking out certain electrical signals in the heart that can cause the irregular heartbeat in the first place. And treating an irregular heartbeat can decrease the risk of blood clots, heart attacks and stroke. This medication comes in two different doses which are 50mg and 100mg. If you have any questions regarding this medication or any inquiries in general, feel free to give us a call at our toll free number 1-877-385-8998.     


How long does it take for Flecainide to work?

This medication has shown signs of working within 2 to 4 hours. However, it will take 3-5 days before you gain the full benefits of this medication.


How long does Flecainide stay in your system?

Tambocor has a pretty long half-life of 12 to 27 hours. So it may be a few days before it is completely eliminated from your system.


What are the side effects of Flecainide?

Some of the most common side effects of this medication are as follows; Dizziness, headache, vision changes, difficulty focusing, mild nausea, weakness, uncontrollable shaking of a part of the body, stomach pain and constipation. Keep in mind that these are not all of the side effects listed for this medication, and if you are experiencing any of these be sure to inform your doctor if they persist or worsen.


Who makes Tambocor?

Tambocor is manufactured by 3M pharmaceuticals. It was founded in the year 1902, and today it is a global leader in markets from health care to highway safety to office products. Tambocor went off-patent on February 10th 2004, allowing a generic to become available.

Call To Complete

Need Help?
Call Our CareTeam


Our CareTeam Member will guide you to complete your order