In cases where a patient with hyperthyroidism has significant symptoms but contraindications to antithyroid medications, consider **supportive treatment with beta-blockers** to manage adrenergic symptoms, especially in the early stages before definitive treatment NICE CKS.
**Arrange urgent specialist assessment** to evaluate other definitive treatment options such as radioactive iodine or surgery, particularly if symptoms are severe or if there are concerns about the underlying cause NICE CKS.
**Discuss with the patient** the possible benefits and risks of all treatment options, including radioactive iodine and surgery, and involve them in shared decision-making NICE CKS.
If antithyroid drugs are contraindicated, **radioactive iodine treatment** is a first-line definitive treatment for adults with Graves' disease unless contraindicated (e.g., active orbitopathy, pregnancy, or breastfeeding) NICE CKS.
**Thyroid surgery** may be considered, especially if there are large goitres, suspicion of malignancy, or intolerance to medical therapy, and should be performed by a high-volume thyroid surgeon NICE CKS.