Is my thyroxine treament causing my angina?
Angina may become worse while given thyroxine but it is not the thyroxine causing the Angina. It is the case that the hypothyroid state artificially helps angina by slowing down the metabolism and thus reducing the stress on the heart, and once thyroxine is taken the heart rate will increase to what it should be working at normally, therefore aggravating the angina you already have.
