What is Levothyroxine
It is a synthetic thyroid hormone used to replace or supplement thyroid hormone levels in the body.
You may also see it referred to as L-thyroxine and levothyroxine sodium.
In the United States it is sold under the following brand names: Levothroid®, Levoxyl®, Synthroid® and Unithroid®.
In Canada you will find it sold as: Eltroxin®, Euthyrox, Levothyroxine Sodium and Synthroid®.
Your Doctor will determine the correct dose based on a blood test. They may test your blood periodically to ensure you are getting the proper dose.
You may see the dose reported in milligrams (mg) or micrograms (mcg).
Levothyroxine is available in the following doses:
- 0.0.25mg/25mcg tablets
- 0.05mg/50mcg tablets
- 0.075mg/75mcg tablets
- 0.088mg/88mcg tablets
- 0.1mg/100mcg tablets
- 0.112mg/112mcg tablets
- 0.125mg/125mcg tablets
- 0.137mg/137mcg tablets
- 0.15mg/150mcg tablets
- 0.175mg/175mcg tablets
- 0.2mg/200mcg tablets
- 0.3mg/300mcg tablets
May include racing heart, unusual heart rhythms, chest pain, heart attack, tremors, headache, anxiety/nervousness, trouble sleeping, sweating and weight lose.
The chance of side effect goes up as your dose goes up.
Always talk to your Doctor if you feel you are experiencing side effects.
If you are prescribed this medication it is important to know how to take levothyroxine. I often tell people in the pharmacy to think of the medication as being sticky. It will stick to any thing else in the stomach and the body won’t absorb it as well.
Always take it on an empty stomach, that means no vitamins, no other pills, not even coffee. Just the thyroid tablet and water.