: The emergence of synthetic pharmaceuticals and specific thyroid hormones in the mid-20th century led to a shift away from elemental iodine/iodide preparations toward more targeted (and often more expensive) treatments. The Modern Deficiency Crisis
: By the late 1800s and early 1900s, it was used to treat conditions ranging from bronchitis and asthma to scrofula, syphilis, and chronic infections . Iodine - Bringing Back the Universal Medicine
For over a century, iodine was considered a "panacea for all human ills". : The emergence of synthetic pharmaceuticals and specific