What are the possible side effects of Tirosint (Levothyroxine)?
Stop using levothyroxine and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have any of these serious side effects: headache sleep problems (insomnia) nervous or irritable feeling fever, hot flashes, sweating changes in your menstrual periods appetite changes, weight changes Less serious side effects may include mild hair loss. This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.