What are the treatment options for hyperthyroidism?

An overactive thyroid releases too much thyroid hormone, which can cause palpitations, tremor, heat intolerance, sweating, anxiety, weight change, or frequent bowel movements. The cause may be an autoimmune condition, thyroid inflammation, or an overactive nodule, and each may need a different approach.

A [Thyroid Function Test](/treatments/diagnostics-and-screening/thyroid-function-test/) measures hormone patterns. A [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) can review symptoms, medicines, pregnancy plans, examination findings, and whether specialist referral is needed.

Thyroid-suppressing medicines reduce hormone production and may be used while the condition settles or as part of a longer plan. A separate medicine may ease a fast heartbeat or tremor when appropriate. Some causes are treated with radioactive iodine or surgery, which require specialist assessment and discussion of risks, preparation, and later thyroid replacement.

Take prescribed medicine on schedule and attend blood-test appointments. Tell your clinician promptly about fever, sore throat, yellowing skin, severe rash, or unusual bruising while taking thyroid-suppressing treatment, because the medicine may need review.

Seek urgent care for chest pain, fainting, severe breathlessness, confusion, or a very rapid or irregular heartbeat. A high fever with severe agitation, vomiting, or marked weakness can signal a serious thyroid emergency and needs immediate assessment.

What is causing my hyperthyroidism? How often will my thyroid levels be checked? Which side effects require same-day advice? Is treatment compatible with pregnancy plans? Should I see an endocrinologist, and what happens if my thyroid becomes underactive?