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Graves disease: essential context

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Thyroid storm is a sudden severe worsening that can be life-threatening. Signs can include a fast heartbeat, high temperature, severe agitation and confusion, or loss of consciousness. If you suspect it, call your local emergency number for an ambulance immediately; do not wait for every sign. NHS gives 999 as its UK emergency route. [CRISIS-HIGH]

Seek emergency care for severe eye pain, including sudden severe pain; an eye or eyes newly bulging with vision changes; an eye or eyes newly bulging with a severe headache or feeling sick; or a child whose eye or eyes have just begun bulging. Use your local emergency pathway. NHS advises 999 or A&E for these separate triggers; do not drive yourself. [EYES]

If taking antithyroid medicine, contact your doctor right away for fever, chills, a persistent sore throat, jaundice, rash, itching, unusual bruising, fatigue or weakness, abdominal discomfort or loss of appetite. Follow medicine-specific urgent instructions: NHS tells carbimazole users to stop it and call a doctor or 111 now for fever, sore throat, mouth ulcers, severe tiredness, flu-like symptoms, feeling unwell or suspected infection, or easier bleeding or bruising. For these urgent warnings outside the UK service context, use your local urgent-care route. This is not a complete side-effect list: follow your medicine leaflet’s urgent and emergency instructions. Emergency instructions take priority over the general contact-your-doctor advice here. [GRAVES] [CARB]

Discuss iodine supplements, seaweed products, multivitamins and iodine-containing cough products with your clinician; excess iodine can worsen Graves-related hormone excess. Tell your doctor immediately if planning pregnancy or becoming pregnant while taking carbimazole, or within six months after radioiodine treatment. [GRAVES] [CRISIS-HIGH]

Sources and review scope

These source notes explain the evidence consulted and its limits. Educational information does not replace individual medical care.

ATA-GRAVES

American Thyroid Association: Graves’ Disease

What causes Graves’ disease?; Symptoms (eye disease); Diagnosis; Treatment · Supporting educational text checked in the cited sections. Independent clinical review has not yet been completed.

Publisher date: No page revision date captured. Targeted sections checked on 11 November 2026 (UTC). Targeted educational text; underlying trials, comparative outcomes and complete prescribing evidence have not been comprehensively appraised.

NHS-OVERVIEW

NHS: Overactive thyroid — overview

Definition; symptoms; treatment; causes · Supporting educational text checked in the cited sections. Independent clinical review has not yet been completed.

Publisher date: Reviewed 11 April 2023; review due 11 April 2026. Targeted sections checked on 11 November 2026 (UTC). Targeted educational text; underlying trials, comparative outcomes and complete prescribing evidence have not been comprehensively appraised.

CRISIS-HIGH

NHS: Overactive thyroid — complications

Eye problems; pregnancy; thyroid storm · Supporting educational text checked in the cited sections. Independent clinical review has not yet been completed.

Publisher date: Reviewed 11 April 2023; review due 11 April 2026. Targeted sections checked on 11 November 2026 (UTC). Displayed review date is past due; targeted content remains accessible. This is not a fresh NHS review or a complete clinical appraisal.

CARB

NHS: Side effects of carbimazole

Serious side effects; Serious allergic reaction; other side effects · Supporting educational text checked in the cited sections. Independent clinical review has not yet been completed.

Publisher date: Reviewed 1 May 2025; next review 1 May 2028. Targeted sections checked on 11 November 2026 (UTC). Targeted educational text; underlying trials, comparative outcomes and complete prescribing evidence have not been comprehensively appraised.

EYES

NHS: Bulging eyes

Immediate action required; treatment · Supporting educational text checked in the cited sections. Independent clinical review has not yet been completed.

Publisher date: Reviewed 26 June 2026; next review 26 June 2029. Targeted sections checked on 11 November 2026 (UTC). Targeted educational text; underlying trials, comparative outcomes and complete prescribing evidence have not been comprehensively appraised.

TESTS

NIDDK: Thyroid Tests

TSH and T4 tests; thyroid antibody tests · Supporting educational text checked in the cited sections. Independent clinical review has not yet been completed.

Publisher date: Last reviewed May 2017. Targeted sections checked on 11 November 2026 (UTC). Targeted educational text; underlying trials, comparative outcomes and complete prescribing evidence have not been comprehensively appraised.

GRAVES

NIDDK Graves Disease

Definition L 147–148; eye mechanism/function L 188–196; cause/TSI L 202–203; diagnosis L 206–211; antithyroid warning L 243–252; iodine L 295–300; footer L 325 · Retained targeted NIDDK source reading from 2 November 2026; not a completed current-source or clinical appraisal.

Selected NIDDK supporting passages were read on 2 November 2026; no new source-currency or clinical appraisal of that page is claimed. Product-specific urgent instructions take priority.

ATA-HASH

American Thyroid Association: Hashimoto’s Thyroiditis

Definition; symptoms; diagnosis; treatment with normal or low thyroid function · Supporting educational text checked in the cited sections. Independent clinical review has not yet been completed.

NHS-TREATMENT

NHS: Overactive thyroid — treatment

Medicine, lines 24–33; treatment options and specialist care, lines 15–23. General side-effect wording on this older page does not supersede the medicine-specific urgent carbimazole instructions. · Targeted treatment sections read; independent clinical review has not been completed.

The displayed review date is past due. Targeted treatment text was read on 11 November 2026 (UTC), not freshly reviewed by NHS. Product-specific urgent instructions remain controlling. No efficacy percentage, personal course, dose or treatment selection is proposed.

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