Steroids and hyperthyroidism: what to know

Hyperthyroidism means the thyroid is producing too much thyroid hormone. Steroids can change inflammation and the body's response to stress, so they may be considered in particular medical situations rather than as routine thyroid treatment. They can also affect blood sugar, mood, sleep, and infection risk. Do not start, stop, or change a steroid without advice, especially if you have taken it regularly.

Possible thyroid-related symptoms include palpitations, excessive sweating, heat intolerance, diarrhoea, feeling anxious, and difficulty sleeping. These symptoms can have other causes, so a clinician may check your pulse, examine your neck, and order thyroid blood tests.

Tell the prescriber about every steroid you use, including tablets, injections, inhalers, creams, and medicines bought without a prescription. Ask why it is being recommended, how long it is intended to continue, and whether it needs a gradual reduction. Take it exactly as directed and keep a record of new symptoms.

Arrange a review if symptoms change after starting or reducing a steroid. Bring your medicine list and any thyroid test results. A page about Hyperthyroidism can help you understand the condition and its usual assessment.

Seek urgent medical help for severe or worsening palpitations, chest pain, fainting, marked breathlessness, confusion, or a very high temperature. Contact a clinician promptly if you cannot keep medicines down, develop signs of infection, or have rapidly worsening sweating, shaking, or diarrhoea.

What is the steroid intended to treat, and how will we check whether it is helping? Could it affect my thyroid tests or interact with my other medicines? What symptoms should prompt a same-day call, and is a taper needed?