Weekly Intramuscular Injection of Levothyroxine following Myxoedema: A Practical Solution to an Old Crisis

Figure 1

Thyroid function tests following admission. Intramuscular levothyroxine continued from day 50 until day 86 (end of graph) when converted to oral levothyroxine. Unbroken vertical lines refer to intramuscular levothyroxine initiation, dose change, and final IM dose. Dashed vertical lines refer to dates of other intramuscular levothyroxine injections.