Benefits

• Correction of hypothyroidism symptoms
• Metabolism boost
• Rapid onset of action
• Conversion of T4 to T3

Side-effects

• Weight loss
• Nervousness
• Excessive sweating
• Sensitivity to heat
• Temporary hair loss
• Chest pain
• Rapid or irregular heartbeat or pulse
• Symptoms of overdose: headache, irritability, nervousness, sweating, increased bowel motility, menstrual irregularities
• Hives
• Difficulty breathing
• Swelling of face, lips, tongue, or throat
• Weak or shallow breathing
• Confusion
• Feeling cold all the time
• Changes in weight or appetite
• Chest pressure spreading to jaw or shoulder
• Light-headed feeling, passing out
• Severe headaches, ringing in ears, dizziness, vision problems, pain behind eyes
• Seizure
• Pain, stiffness, trouble moving legs

Black Box Warning: Thyroid hormone should not be used to treat obesity in patients with normal thyroid function. Liothyronine is ineffective for weight reduction in normal thyroid patients and may cause serious or life-threatening toxicity, especially when taken with amphetamines. Talk to your doctor about the potential risks associated with this medication.