What happens if the dosage of hypothyroidism medication is too high?
Disease description:
I am a patient with hypothyroidism, but recently I have been taking an excessive dose of medication. I would like to know what the consequences might be of taking too much of the medication.
Doctor's answer (1)
Dr. Yang Chuanjia
Hypothyroidism (commonly known as underactive thyroid) is usually treated with thyroid hormone replacement. When patients take excessive doses of medication, it may lead to a series of adverse effects. An overdose can elevate the level of thyroid hormones in the body beyond physiological levels, a condition known as hyperthyroidism (drug-induced hyperthyroidism). Symptoms may include, but are not limited to:
1. Palpitations or increased heart rate: Patients may experience tachycardia, arrhythmia, angina, palpitations, or anxiety-related cardiac symptoms.
2. Thyroid-related eye disease: Symptoms may include eyelid swelling, eyelid retraction, and bulging eyes.
3. Metabolic symptoms: Thyroid hormones promote metabolism, and an excess may lead to decreased appetite, weight loss, heat intolerance, excessive sweating, irritability, fever, and vomiting.
4. Anxiety and irritability: Excess thyroid hormone can affect the function of the brain and nervous system, causing mood swings.
5. Other side effects: Excessive thyroid hormone may sometimes cause headaches; affect the muscles, leading to muscle weakness and tremors; and increase the risk of bone loss, resulting in reduced bone density and osteoporosis.
Patients with hypothyroidism should follow medical advice regarding medication and maintain thyroid function within normal ranges. If an excessive dose is taken or any discomfort is experienced, prompt medical attention is advised.
