Levothyroxine (T4) tablet

Symptoms of hypothyroidism (low levels of thyroid hormone) include fatigue, cold and heat intolerance, hypotension, fluid retention, dry skin and/or hair, constipation, headaches, low sexual desire, infertility, irregular menstrual periods, aching muscles and joints, depression, anxiety, slow metabolism and decreased heart rate, memory impairment, enlarged tongue, deep voice, swollen neck, PMS, weight gain, hypoglycemia, and high cholesterol and triglycerides. Yet, more than half of all people with thyroid disease are unaware of their condition.

T4 (Thyroxine) is an inactive form of thyroid hormone that is converted int he body to T3 (triiodothyronine), the active form. Some hypothyroid patients remain symptomatic on T4 therapy and T3 may also be required for optimal thyroid replacement therapy. Another option is to use a physiologic blend of T4/T3. 

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