Hi Karen! Most of your questions about PTU should be answered by your doctor. If you forgot to ask at your appointment, you can call the office and ask the nurse. The PTU starts working immediately, but it can take 3-6 weeks to use up the stored hormone in your system.
Go to the NGDF homepage and you will find a link to recommended reading material that will give you the information you’re looking for about thyroid tests and such.
Glad you found us and hope you feel better soon.
Dianne W