Levothyroxine Sodium Injection is contraindicated in uncorrected adrenal insufficiency.
Cardiac Adverse Reactions in the Elderly and in Patients with Underlying Cardiovascular Disease: Overtreatment may cause arrhythmias, tachycardia, myocardial ischemia and infarction, or worsening of congestive heart failure and death, particularly in patients with cardiovascular disease and in elderly patients. Start with lower doses in elderly patients and in patients with underlying cardiovascular disease and monitor patients after administration.
Acute Adrenal Crisis in Patients with Concomitant Adrenal Insufficiency: Initiation of thyroid hormone therapy prior to initiating glucocorticoid therapy may precipitate an acute adrenal crisis in patients with adrenal insufficiency. Treat patients with adrenal insufficiency with replacement glucocorticoids prior to initiating treatment.
Worsening of Diabetic Control: May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. Carefully monitor glycemic control.
Adverse reactions associated with Levothyroxine Sodium Injection are primarily those of hyperthyroidism due to therapeutic overdosage: fatigue, increased appetite, weight loss, heat intolerance, fever, excessive sweating, headache, hyperactivity, nervousness, anxiety, irritability, emotional lability, insomnia, tremors, muscle weakness, muscle spasm, palpitations, tachycardia, arrhythmias, increased pulse and blood pressure, heart failure, angina, myocardial infarction, cardiac arrest, dyspnea, diarrhea, vomiting, abdominal cramps, elevations in liver function tests, flushing and rash.
To report SUSPECTED ADVERSE REACTIONS, contact Fresenius Kabi USA, LLC at 1-800-551-7176, option 5, or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
See full prescribing information for drugs that affect thyroid hormone pharmacokinetics and metabolism (e.g., synthesis, secretion, catabolism, protein binding, and target tissue response) that may alter the therapeutic response to Levothyroxine Sodium Injection.
This Important Safety Information does not include all the information needed to use Levothyroxine Sodium Injection safely and effectively. Please click on this link (https://tinyurl.com/y3kmhe2b) for the full prescribing information for Levothyroxine Sodium Injection. Full prescribing information is also available at www.fresenius-kabi.com/us.
