I have been diagnosed with an underactive thyroid. I would like to take Erfa thyroid to treat this, as a natural product supplying both T4 and T3. I can obtain it locally, but my medical practice won't prescribe, even though an endocrinologist at my local hospital is happy to monitor its use, as is my acupuncturist - who is a qualified doctor, but not a prescribing GP. Do I have any choices other than to change GP or to import the product myself from abroad? Is there any way of obtain Erfa Thyroid without prescription?