Tambocor Side Effects

Although it can be difficult to predict whether you will develop side effects while taking Tambocor, some of the most commonly reported problems include dizziness, headaches, and vision problems. Reactions such as these tend to be mild and treated easily. However, this drug can also cause potentially dangerous problems, such as chest pain, severe diarrhea, or liver problems, which require immediate medical attention.

An Introduction to Tambocor Side Effects

Just like any medicine, Tambocor™ (flecainide acetate) can cause side effects. However, not everyone who takes the medication will have problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Tambocor. Your healthcare provider can discuss a more complete list with you.)

Common Side Effects of Tambocor

Tambocor has been studied extensively in clinical trials. In these studies, the side effects that occurred in a group of people taking Tambocor were carefully recorded, so it was possible to see which side effects occurred and how often they happened.
In these studies, the most common Tambocor side effects included:
  • Dizziness, lightheadedness, or faintness -- in up to 18.9 percent of people
  • Vision problems (including blurred vision, difficulty focusing, and seeing spots) -- up to 15.9 percent
  • Irregular, rapid, or skipped heartbeats -- up to 13 percent
  • Shortness of breath -- up to 10.3 percent
  • Headache -- up to 9.6 percent
  • Nausea -- up to 8.9 percent
  • Fatigue -- up to 7.7 percent
  • Chest pain -- up to 5.4 percent
  • Loss of strength -- up to 4.9 percent
  • Tremor (shakiness) -- up to 4.7 percent.
Other common side effects, occurring in 1 percent to 4.4 percent of people, included:
  • Constipation
  • Fluid retention (edema)
  • Abdominal (stomach) pain
  • General feelings of discomfort
  • Fever
  • Vomiting
  • Diarrhea
  • Heartburn or indigestion
  • Loss of appetite
  • Rash
  • Numbness, tingling, burning, or pricking sensations of the skin
  • Loss of muscle coordination
  • Sudden warmth and redness of the face, neck, or upper chest (flushing)
  • Increased sweating
  • Whirling or spinning sensation
  • Fainting
  • Drowsiness
  • Ringing in the ears
  • Anxiety
  • Insomnia
  • Depression.
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Tambocor Drug Information

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