Bitiron

Bitiron is a synthetically derived thyroid hormone replacement preparation. It consists of levothyroxine sodium (thyroxine, T4) and liothyronine sodium (triiodothyronine, T3) in a 4 to 1 ratio by weight. Liotrix was developed when it was believed that serum levels of both T4 and T3 were maintained by direct thyroidal secretion. It is now known that the thyroid gland secretes approximately ten times more T4 than T3 and that 80% of serum T3 is derived from the deiodination of T4 in peripheral tissues.

Side effects:

• Chest pain
• constipation
• depressed mood
• difficulty in moving
• dryness of the eye
• dry skin and hair
• fast, irregular, pounding or racing heartbeat or pulse
• fear, nervousness
• fever
• headache
• hives or welts
• increased sweating
• increased weight
• increase in blood pressure
• irritation
• itching skin
• joint pain, stiffness or swelling
• lack of appetite
• lack or loss of strength
• loss of interest or pleasure
• muscle aching or cramping
• muscle pain or stiffness
• nausea
• redness of skin
• shakiness in legs, arms, hands, feet
• shortness of breath
• skin rash
• sleeplessness
• slowed heartbeat
• sluggishness
• swelling of eyelids, face, lips, hands, or feet
• swollen joints
• tightness in chest
• tiredness
• trembling or shaking of hands or feet
• weight gain
• wheezing