Westhroid

Last updated on RxList: 5/27/2021
Westhroid Side Effects Center

What Is Westhroid?

Westhroid (thyroid) is a hormone used to treat underactive thyroid (hypothyroidism), to treat or prevent goiters, or as a diagnostic agent used in suppression tests to differentiate suspected mild hyperthyroidism or thyroid gland anatomy.

What Are Side Effects of Westhroid?

Side effects of Westhroid are uncommon. Temporary hair loss may occur during the first few months of treatment with Westhroid. Infrequent side effects of Westhroid include:

  • diarrhea,
  • nausea,
  • vomiting,
  • changes in appetite,
  • headache,
  • weight loss,
  • tiredness,
  • changes in menstrual periods, or
  • trouble sleeping

Dosage for Westhroid

The usual starting dose of Westhroid to treat hypothyroidism is 32.5 mg, with increments of 16.25 mg every 2 to 3 weeks.

What Drugs, Substances, or Supplements Interact with Westhroid?

Westhroid may interact with oral anticoagulants, insulin or oral hypoglycemic therapy, cholestyramine, colestipol, estrogens, or oral contraceptives. Tell your doctor all medications and supplements you use.

Westhroid During Pregnancy or Breastfeeding

Westhroid may be used during pregnancy. Tell your doctor if you are pregnant before starting treatment with Westhroid as your dose may need to be adjusted. Minimal amounts of this drug pass into breast milk. Consult your doctor before breastfeeding.

Additional Information

Our Westhroid (thyroid) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

SLIDESHOW

Hyperthyroidism Symptoms and Treatment See Slideshow
Westhroid Consumer Information

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Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Common side effects may include temporary hair loss (especially in children).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Westhroid (Thyroid Tablets, USP)

QUESTION

Where is the thyroid gland located? See Answer
Westhroid Professional Information

SIDE EFFECTS

Adverse reactions other than those indicative of hyperthyroidism because of therapeutic overdosage, either initially or during the maintenance period, are rare (See OVERDOSAGE).

Read the entire FDA prescribing information for Westhroid (Thyroid Tablets, USP)

© Westhroid Patient Information is supplied by Cerner Multum, Inc. and Westhroid Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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