Digitalis has been used to treat heart problems for centuries. The medication is used to treat congestive heart failure. It slows the heart rate, and increases the force of each contraction. Digitalis is also used to treat irregular heart rate from atrial fibrillation. When high levels of digitalis develop in the body, the medication can cause side effects that can become life threatening. It is also possible to develop symptoms of digitalis toxicity when blood tests are within therapeutic range.
Common Symptoms of Digitalis Toxicity
The most common symptom of digitalis toxicity is nausea that can lead to vomiting. If you take digitalis and develop nausea, it is important to notify your doctor. You should have your heart rate checked, and blood tests performed to measure kidney function, and digitalis level in the bloodstream. An EKG might also be ordered by your doctor. If you develop a viral illness that causes vomiting or diarrhea you should also be checked by your physician. Dehydration can increase the chances of toxicity. Close monitoring of the cause of your symptoms is important. Headache, skin rash, dizziness and mental confusion are also common signs that digitalis levels in the body are too high.
Serious Toxicity Symptoms of Digitalis
Because digitalis slows the heart rate, heart block can develop (a disturbance in the electrical signals in the heart). The result can lead to heart failure, passing out, shortness of breath, dizziness, low blood pressure, fatigue, and nausea and vomiting from hypotension. It is also possible to develop a rapid heart rate when digitalis levels are too high. Many patients monitor their own heart rates when taking the medication.
Other Symptoms to Watch for When Taking Digitalis
Blurred vision and yellow vision that might appear like a halo around objects are symptoms associated with digitalis toxicity. Breast enlargement can occur, even in men. Several conditions can increase the chances of developing toxicity, including kidney disease, use of other medications, including the commonly used reflux medication omeptrazole (Prilosec), abnormal calcium and magnesium levels, use of diuretics, and advanced age. Because digitalis toxicity can occur even when blood levels are considered within therapeutic range, it is important to always discuss symptoms with your physician.
