Diseases
hyperthyroidism
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Overview
An overactive thyroid, also known as hyperthyroidism or thyrotoxicosis, is where the thyroid gland produces too much of the thyroid hormones. The thyroid is a small butterfly-shaped gland in the neck, just in front of the windpipe (trachea).
Symptoms
- fast heartbeat, a condition called tachycardia.
- losing weight without trying.
- irregular heartbeat, also called arrhythmia.
- pounding of the heart, sometimes called heart palpitations.
- increased hunger.
Causes
- graves' disease.
- overactive thyroid nodules.
- thyroiditis.
Risk factors
- a family history of thyroid disease, particularly graves' disease.
- a personal history of certain chronic illnesses, including pernicious anemia
- a recent pregnancy, which raises the risk of developing thyroiditis.
Diagnosis
- blood tests.
- medical history and physical exam.
- radioiodine scan and uptake test.
- thyroid ultrasound.
Medicines used
Frequently asked questions
What is hyperthyroidism?
An overactive thyroid, also known as hyperthyroidism or thyrotoxicosis, is where the thyroid gland produces too much of the thyroid hormones. The thyroid is a small butterfly-shaped gland in the neck, just in front of the windpipe (trachea).
What are the symptoms of hyperthyroidism?
fast heartbeat, a condition called tachycardia., losing weight without trying., irregular heartbeat, also called arrhythmia., pounding of the heart, sometimes called heart palpitations., increased hunger.
What causes hyperthyroidism?
graves' disease.; overactive thyroid nodules.; thyroiditis.
Which medicines are used for hyperthyroidism?
carbimazole, methimazole, propylthiouracil
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