De fortes doses sont susceptibles d'entraîner de graves effets secondaires, surtout si elles sont prises en même temps que d'autres médicaments conçus pour une perte de poids. WARNING. Thyroid hormones, including SYNTHROID, either alone or with other therapeutic agents, should not be used for the treatment of obesity or for weight loss. How to use Synthroid. Read the Patient Information Leaflet if available from your pharmacist before you start taking levothyroxine and each time you get a refill. Call your doctor if you miss 2 or more doses in a row. Ask your doctor ahead of time what to do about a missed dose and follow your doctor's specific directions. -The relative bioavailability between oral and IV levothyroxine is estimated to be 48% to 74%; due to individual differences, TSH levels should be measured and doses adjusted accordingly. Use: For the treatment of myxedema coma. En doses moyennes, la levothyroxine (Synthroid 100mcg) stimule la croissance des tissus, augmente la demande de tissus en oxygène, augmente l'activité fonctionnelle du système cardio-vasculaire et du système nerveux central. Reduce SYNTHROID dosage to pre-pregnancy levels immediately after delivery and measure serum TSH levels 4 to 8 weeks postpartum to ensure SYNTHROID dose is appropriate. New Onset Hypothyroidism : Normalize thyroid function as rapidly as possible. Synthroid is used safely for treating the above-mentioned pathologies in children, as well as pregnant and breastfeeding women. A feature of the use of this drug in these periods in women is the requirement for particularly strict adherence to prescribed doses to prevent the development of hypothyroidism in the fetus or baby. Synthroid: La lévothyroxine est un supplément en hormone thyroïdienne utilisé pour traiter les personnes dont la glande thyroïde ne produit pas suffisamment d'hormones. La lévothyroxine réduit les symptômes d'hypothyroïdie tels que la prise de poids, la sensibilité au froid, le manque d'énergie et la sécheresse cutanée. Il peut s.