I am taking thytprohin pmg, a food supplement. how long does it take the medication to leave my system? i don't want it to effect future thyroid panel

Read package label: Typically these types of products come with label inserts inside the boxes or on the panels of the boxes with instructions and information such as what you ask. Another resource would be the internet at the website of the company or their toll-free phone number which they likely publish on their website. Some products may even have 24 hour hotlines set up to answer specific questions.