Levothyroxine
Westhroid is a brand-name thyroid medication containing desiccated thyroid extract derived from porcine thyroid glands. It provides both thyroxine (T4) and triiodothyronine (T3) hormones to replace deficient thyroid hormones in patients with hypothyroidism. This natural thyroid hormone replacement is prescribed for individuals with underactive thyroid conditions.
Westhroid is a natural desiccated thyroid medication used to treat hypothyroidism by providing both T4 and T3 hormones.
Key facts at a glance
- RxNorm
- 220939
- Generic
- Westhroid
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of hypothyroidism (underactive thyroid gland). May be used when thyroid hormone production is insufficient.
Replaces thyroid hormones (T4 and T3) that the body is not producing adequately. These hormones help regulate metabolism, energy levels, and various body functions.
Should be taken on an empty stomach, typically 30-60 minutes before breakfast. Requires regular thyroid function monitoring via blood tests. Dosage must be individualized and should not be stopped without medical consultation.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 26, 2026. · Read our editorial policy