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The Side Effects of T3 Thyroid

author image Susan Kaye
Susan Kaye writes about alternative health care, the medicinal value of foods and natural remedies for healing body, mind and spirit. She is currently retired from an active classical homeopathy practice and enjoys sharing her passion for alternative medicine in her writing with those seeking health care freedom.
The Side Effects of T3 Thyroid
The Side Effects of T3 Thyroid Photo Credit Jupiterimages/Comstock/Getty Images

People who suffer from hypothyroidism, Hashimoto's Thyroiditis and the absence of a thyroid gland must take thyroid replacement hormones. T3, also called Cytomel, or by its generic name, Liothyronine Sodium, is one of the two primary thyroid hormones prescribed by doctors for thyroid hormone replacement therapy. The medicine is necessary to help regulate the body's energy and metabolism, explains Drugs.com. Although considered safe when used according to directions, it may have side effects which should be noted.

Common Side Effects

Drugs.com as well as the RxList.com both list the common side effects for T3 as possible headaches, hot flushes, weight gain, sweating, heat intolerance, heart palpitations with irregular heart beat, painful aching in the calves, an increase in bowel activity, irritability, anxiety, menstrual problems, hair loss, depression, exercise intolerance and chest pain.

Severe Side Effects

Serious side effects reported by Drugs.com and the RxList.com are hives; swelling of the mouth, throat, tongue and face; breathing problems; and anaphylaxis, all signs of an allergic reaction requiring immediate medical assistance. Additionally incorrect doses or excessive doses of T3 may produce symptoms of thyroid storm in sensitive people. This is a potentially life-threatening condition produced when there is too much T3 thyroid replacement hormone in the body. Thyroid storm symptoms according to Drugs.com are overly fast heartbeat, excessively high blood pressure, extreme restlessness, confusion, extreme anxiousness with irritability, shaking diarrhea, nausea, coma or shock.

When Not to Use Cytomel

T3 should not be used if you have the thyroid disorder, thyrotoxicosis, uncontrolled adrenal gland disorder or Graves disease, points out the Merck Manual. Consult your doctor before taking Cytomel or T3 or for an adjustment in your dose if you have any of the following diseases or conditions: angina pectoris, heart disease, diabetes, congestive heart failure or pituitary gland problems.

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