Can Ozempic Cause Thyroid Cancer?
Medically reviewed by Andre Stone | MD, University of Pittsburgh School of Medicine on August 25th, 2026.
Ozempic carries a boxed warning for thyroid C-cell tumors, including medullary thyroid carcinoma. Studies in rodents showed an increased risk of thyroid C-cell tumors at exposures considered clinically relevant, but it is unknown whether these findings apply to humans. The FDA requires this warning due to the animal study findings, though the actual risk in humans remains uncertain. Clinical trials haven't shown increased thyroid cancer rates in people taking Ozempic, but long-term data is still limited. If you have a personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2, you shouldn't use Ozempic. We can help assess your individual risk factors and discuss safer alternatives if needed.
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