*This statement summarizes the third USPSTF recommendations for screening for chlamydial infection and the supporting scientific evidence, and it updates the 1995 recommendations contained in the Guide to Clinical Preventive Services, second edition (1).
What are the possible side effects of levothyroxine (Levothroid, Levoxyl, Synthroid, Tirosint, Unithroid)? Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have a serious side effect such as: headache;
Over-treatment with levothyroxine may cause increase in heart rate, cardiac wall thickness, and cardiac contractility; may precipitate angina or arrhythmias, particularly in patients with cardiovascular disease and in elderly patients; monitor patients receiving concomitant levothyroxine and sympathomimetic agents for signs and symptoms of coronary insufficiency; initiate lower dose in elderly, those with angina pectoris, cardiovascular disease, or in those with severe hypothyroidism