Thyroid hormone-untoward effects Too much does of thyroid hormone can cause the clinical manifestations of hyperthyroidism. angina and myocardial infarction may occur in cardiopath and old patients, using p adrenergic receptor antagonists to against the adverse effects and discontinuing thyroid hormone dIabetes, coronary heart disease, rapid arrhythmia patients should not be usedThyroid hormone—untoward effects ❑ Too much does of thyroid hormone can cause the clinical manifestations of hyperthyroidism, angina and myocardial infarction may occur in cardiopath and old patients, using β adrenergic receptor antagonists to against the adverse effects and discontinuing thyroid hormone. ❑Diabetes, coronary heart disease, rapid arrhythmia patients should not be used