Known interactions

Acebutolol, Aloe barbadensis, Aloe species, Aloe vera, Amiodarone Injection, Amiodarone Oral, Ammonium Chloride Injection, Ammonium Choride Oral, Baking Soda, Bell-Ans, Betaxolol Ophthalmic, Betaxolol Oral, Betoptic, Betoptic S, Bicitra, Burn Plant, Cape Aloe, Cardioquin, Carteolol, Carteolol Ophthalmic, Cartrol, Cimetidine, Cimetidine Injection, Cimetidine Liquid, Cisapride, Cisapride Suspension, Citric Acid and Potassium Citrate Oral Solution, Citric Acid and Sodium Citrates, Citrocarbonate, Cordarone, Cordarone Injection, Crataegus laevigata, Crataegus monogyna, Crataegus oxyacantha, Cytra-2, Digitek, Digoxin, Digoxin Injection, Digoxin Liquid, Hagedorn, Haw, Hawthorn, Hedgethorn, Inderal, Inderal IV, Kaletra, Kaletra Solution, Kerlone Oral, Labetalol, Labetalol Injection, Lanoxicaps, Lanoxin, Lanoxin Injection, Lanoxin Liquid, Levatol, Lopinavir and Ritonavir, Lopinavir and Ritonavir Oral Solution, Lopressor, Lopressor HCT, Lopressor Injection, Mayblossom, Maybush, Mayflower, Metoprolol and Hydrochlorothiazide, Metoprolol ER, Metoprolol Injection, Metoprolol Oral, Neut, Normodyne, Normodyne Injection, Norvir, Norvir Oral Solution, Ocupress, Oracit, Pacerone, Penbutolol, Pindolol, Polycitra-K, Potassium Citrate, Propranolol, Propranolol Injection, Propranolol Oral Solution, Propulsid, Propulsid Suspension, Quinaglute Dura-Tabs, Quinidex Extendtabs, Quinidine, Quinidine Extended-Release, Quinidine Injection, Quinora, Ritonavir, Ritonavir Oral Solution, Sectral, Soda Mint, Sodium Bicarbonate, Sodium Bicarbonate Injection, Sodium Bicarbonate Powder, Sodium Lactate, Tagamet, Tagamet HB, Tagamet Injection, Tagamet Liquid, Toprol XL, Trandate, Trandate Injection, Urocit-K, Visken, Whitethorn.

What we now about Tambocor

Brand Name(s): Tambocor

Generic Name Flecainide

What are flecainide tablets?

FLECAINIDE (Tambocor®) is an antiarrhythmic agent. Flecainide treats irregular heart rhythm and can slow rapid heartbeats (tachycardia). Flecainide can help your heart to return to and maintain a normal rhythm. Generic flecainide tablets are available.

What should my health care professional know before I take flecainide?

They need to know if you have any of these conditions:

  • abnormal levels of potassium in the blood
  • heart disease including heart rhythm and heart rate problems
  • kidney disease
  • liver disease
  • previous heart attack
  • an unusual or allergic reaction to flecainide, local anesthetics, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I take this medicine?

Take flecainide tablets by mouth. Follow the directions on the prescription label. Swallow the tablets with a drink of water. Take your doses at regular intervals. Do not take your medicine more often than directed.

Contact your pediatrician or health care professional regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take the missed dose if it is more than 4 hours after the dose was due. Do not take double or extra doses.

What drug(s) may interact with flecainide?

  • acetazolamide
  • ammonium chloride
  • arsenic trioxide
  • astemizole
  • bepridil
  • beta-blockers, often used for high blood pressure or heart problems
  • certain antibiotics (such as clarithromycin, erythromycin, gatifloxacin, gemifloxacin, grepafloxacin, levofloxacin, moxifloxacin, sparfloxacin)
  • cimetidine
  • citrate salts (examples: Bicitra®, Oracit®, Cytra-2, Polycitra®, Urocit®-K)
  • cisapride
  • ginger
  • hawthorn
  • medicines for angina or high blood pressure
  • medicines for malaria
  • medicines for asthma or breathing difficulties (such as formoterol or salmeterol)
  • methazolamide
  • some medicines for treating depression or mental illness (amoxapine, maprotiline, pimozide, phenothiazines, tricyclic antidepressants)
  • medicines to control heart rhythm (examples: amiodarone, digoxin, disopyramide, dofetilide, procainamide, quinidine, sotalol)
  • pimozide
  • probucol
  • quinine
  • terfenadine
  • sodium bicarbonate

Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.

What side effects may I notice from taking flecainide?

Side effects that you should report to your prescriber or health care professional as soon as possible:

  • chest pain, continued irregular heartbeats
  • difficulty breathing
  • swelling of the legs or feet
  • trembling, shaking
  • unusual weakness or tiredness

Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):

  • blurred vision
  • constipation
  • dizziness
  • headache
  • nausea, vomiting
  • stomach pain

What should I watch for while taking flecainide?

Visit your prescriber or health care professional for regular checks on your progress. Do not stop taking flecainide suddenly; this may cause serious, heart-related side effects. Because your condition and the use of flecainide carry some risk, it is a good idea to carry an identification card, necklace or bracelet with details of your condition, medications and prescriber or health care professional.

Check your heart rate (pulse) and blood pressure regularly while you are taking flecainide. Ask your prescriber or health care professional what your heart rate and blood pressure should be, and when you should contact him or her. Your prescriber or health care professional also may schedule regular blood tests and electrocardiograms to check your progress.

You may feel dizzy or faint. Do not drive, use machinery, or do anything that needs mental alertness until you know how flecainide affects you. To reduce the risk of dizzy or fainting spells, do not sit or stand up quickly, especially if you are an older patient. Alcohol can make you more dizzy, increase flushing and rapid heartbeats. Avoid alcoholic drinks.

If you are going to have surgery, tell your prescriber or health care professional that you are taking flecainide.

Where can I keep my medicine?

Keep out of the reach of children in a container that small children cannot open.

Store at room temperature between 15 and 30 °C (59 and 86 °F). Protect from light. Keep container tightly closed. Throw away any unused medicine after the expiration date.

(Note: The above information is not intended to replace the advice of your physician, pharmacist, or other healthcare professional. It is not meant to indicate that the use of the product is safe, appropriate, or effective for you.)

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