Thyroid Synthroid

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Synthroid

Active Ingredients:

  • Levothyroxine sodium

Action mechanism and therapeutic effect of the medication:

Levothyroxine is a preparation of thyroid gland hormones, synthetic levorotary isomer of thyroxine. In low doses Synthroid possesses anabolic action. In average doses stimulates growth and development, increases the demand of tissue in oxygen, stimulates metabolism of proteins, lipids and carbohydrates, stimulation the activity of cardiovascular system. In high doses the medication inhibits the synthesis of thyrotropin releasing hormone.

Medical indications:

Synthroid is indicated in the following conditions:

  • Euthyroid goiter
  • Thyroid gland cancer (after operative treatment)
  • Basedow's goiter
  • Thyroid suppression test
  • Hypothyroidism
  • After resection of thyroid gland and as a prophylaxis of goiter relapses

Synthroid contradictions, precautions and warnings:

Synthroid is contraindicated for use in:

  • Uncontrolled thyrotoxicosis
  • Uncontrolled pituitary insufficiency
  • Uncontrolled insufficiency of adrenal cortex
  • Acute heart attack
  • Acute myocarditis
  • Acute pancarditis
  • Reactions of hypersensitivity to any of the medication ingredients

The medication should be used with caution in: coronary heart disease (atherosclerosis, stenocardia, heart attacks in anamnesis), arterial hypertension, arrhythmia, diabetes, malabsorption syndrome.

Synthroid side effects:

As with any other drug, side effects can occur with Synthroid. However, it does not mean that everyone who takes the medicine will experience these adverse effects. In most cases the preparation is well tolerated. Possible levothyroxine side effects include:

  • Skin rash
  • Hives
  • Itching
  • Swelling of the lips, mouth and throat

High doses of Levothyroxine include:

  • Increased sweating
  • Hot flashes
  • Menstrual problems
  • High blood pressure
  • Seizures
  • Increased appetite
  • Tachycardia
  • Insomnia
  • Hair loss

If any side effects occur during the treatment make sure to consult your health care provider immediately. If you are unsure about anything related to Synthroid, please talk to your doctor or pharmacist.

Drug interaction:

Synthroid can potentially interact with the following groups of drugs:

  • Antacids
  • Antidepressants
  • Calcium supplements
  • Tuberculosis medications
  • Weight loss pills
  • Osteoporosis treatment in post-menopausal women
  • Xantines
  • Blood thinners
  • Bile acid sequestrates
  • Diabetes medications
  • Estrogens
  • Iron containing drugs and supplements

It is possible that all drug interactions are not presented above. For this reason, we recommend you to talk with your health care provide about drug interactions with Synthroid which may apply to you.

Additional information for the patients:

The preparation should be taken according to your doctor's recommendations. Never take the drug for conditions which are not presented in the the drug's leaflet. Try to keep the medicine out of the reach of children.