Tambocor Oral

Tambocor Oral Warning

Although this medication and others like it are used to treat certain kinds of abnormal heartbeats, they may rarely cause serious (sometimes fatal) irregular heartbeats. Therefore, flecainide should be used carefully only in selected patients. Flecainide should not be used in patients with persistent atrial fibrillation/flutter or those who have recently had a heart attack. Consult your doctor or pharmacist for more information.

Tambocor Oral Side Effects

See also Warning section.

Dizziness, vision problems (e.g., blurring, spots, problems focusing, double vision), shortness of breath, headache, nausea, tiredness, and weakness may occur. Less common side effects may include shakiness of hands/arms, constipation, stomach pain, heartburn, mild difficulty speaking, drowsiness, dry mouth. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

• vomiting
• unusual sweating
• swelling
• mental/mood changes (e.g., anxiety, depression, memory loss, confusion, hallucinations)
• numbness/tingling
• problems walking (staggering)
• ringing in the ears
• loss of appetite
• sore throat
• decreased sexual interest/ability
• problems starting the flow of urine
• worsening symptoms of heart failure (e.g., ankle/leg swelling, increased tiredness, increased shortness of breath when lying down)

Seek immediate medical attention if any of these unlikely but serious side effects occur:

• chest pain
• severe dizziness
• fainting
• sudden change in heartbeat (unusually faster/slower/more irregular)

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including:

• rash
• itching
• swelling
• severe dizziness
• trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Tambocor Oral Medical Alert

Your condition can cause complications in a medical emergency. For information about enrolling in MedicAlert, call 1-800-854-1166 (USA) or 1-800-668-1507 (Canada).

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Drug Interactions

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