I have had Synthroid script since 1975 when it was 3 dollars for 30 days. Now it is a couple of hundred dollars for 90 days.
Synthroid and its generic levothyroxine are the most widely prescribed medication in the US.
Easy to produce and with little liability issues. Almost all who stop smoking need it because of thyroid issues that occur after stopping.
My levothyroxine at Kaiser Permanente costs $15 copay at their pharmacy for 90 days. Same cost for 2 years. Don’t know what they actually pay.