Levothroid Inj

In Depth

Generic Name: LEVOTHYROXINE - INJECTION
Pronounced: (lev-oh-thigh-ROX in)

Levothroid Inj Warning

This medication should not be used for weight loss. Normal doses of this medication will not cause weight loss in people with normal thyroid function. Large doses of this medication may cause very serious (possibly fatal) side effects, especially when taken with diet pills.

Levothroid Inj Side Effects

Some hair loss may occur during the first few months of starting this drug. This effect is usually temporary as your body adjusts to this medication. If this effect persists or worsens, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Though unlikely, it is possible to have too much thyroid hormone. Your doctor may need to reduce the dose of this medication. Tell your doctor immediately if any of these unlikely but serious signs of too much thyroid hormone occur:

headache
mental/mood changes (e.g., nervousness, irritability)
shaking
sweating
sensitivity to heat
diarrhea
weight loss
trouble sleeping
tiredness

Seek immediate medical attention if any of these rare but very serious side effects occur:

chest pain
shortness of breath
fast/pounding/irregular heartbeat
swelling of the hands/feet
seizures

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including:

rash
itching/swelling (especially of the face/tongue/throat)
severe dizziness
trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Call your doctor for medical advice about side effects. In the US, you may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088.

In Canada, you may report side effects to Health Canada at 1-866-234-2345.