Levothyroxine - Indications, Dosage, Side Effects and Precautions


Information about Levothyroxine

Generic Name : Levothyroxine
Up-to-date prescription details regarding Levothyroxine are provided here.

Pronunciation : lee voe thye rox' een

Learn the correct pronunciation of the Levothyroxine, understand it's uses, recommended dosages, its indications, how to take, when to take, when not to take, side effects, special precautions, warnings and its and its storage instructions.
You will also find a list of the medication's International and Indian brand or trade names, as well as its pricing information. For verification of the information presented on this page or for additional clarifications, it's advisable to consult your doctor.

ICD Code : Y42.1 Therapeutic Classification : Thyroid and Antithyroid Agents

Trade Names/Brand Names of Levothyroxine

India :

International :

Levothroid, Levoxyl, Synthroid, Unithroid

Why is Levothyroxine Prescribed? (Indications)

This medication is a thyroid hormone, prescribed for hypothyroidism. It works by replacing thyroid hormone when the body does not make enough on its own.

What is the dosage of Levothyroxine?

Adult- Initial- The recommended dose is 12.5-125 mcg/day, orally.

How should Levothyroxine be taken?

It comes as a tablet to take by mouth, on an empty stomach.

What are the warnings and precautions for Levothyroxine?

• Caution should be exercised in patients with history of trouble in swallowing, heart problems, high blood pressure, bleeding disorder, anemia, sugar, jaundice, underactive adrenal or pituitary gland, osteoporosis, infertility, adrenal gland problems, thyroid problems, any allergy, who are taking other medications, elderly, children, during pregnancy and breastfeeding.

• Monitor blood sugar level regularly while taking this medication.

• Dietary fiber may decrease the absorption of this medication; consult with your doctor for proper diet.

What are the side effects of Levothyroxine?

General - Fatigue, increased appetite, weight loss, heat intolerance, fever and excessive sweating.
Central nervous system - Headache, hyperactivity, nervousness, anxiety, irritability, emotional lability and sleeplessness.
Musculoskeletal - Tremor and muscle weakness.
Heart - Palpitations, fast heart rate, abnormal heart rhythm, increased pulse and blood pressure, heart failure, chest pain and heart attack.
Respiratory - Difficulty in breathing.
Gastrointestinal - Diarrhea, vomiting, abdominal cramps and elevation in liver function tests.
Skin - Hair loss and flushing.
Endocrine - Decreased bone mineral density.
Reproductive - Menstrual irregularities and impaired fertility.

What are the other precautions for Levothyroxine?

Avoid excess dosage.

What are the storage conditions for Levothyroxine?

Store it at room temperature (15-30°C), and in an airtight container. Keep away from children.

Levothyroxine: Learn More About The Drug To Treat Thyroid Disorders

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