Teriparatide
Parathyroid hormone is a synthetic form of the naturally occurring hormone that regulates calcium and phosphate balance in the body. It is primarily used as replacement therapy for patients with hypoparathyroidism who cannot maintain adequate calcium levels with calcium and vitamin D alone. The medication works by increasing blood calcium levels through effects on bone, kidneys, and intestines.
Synthetic parathyroid hormone used to treat underactive parathyroid glands by regulating calcium levels in the blood.
Key facts at a glance
- ATC
- H05AA03
- RxNorm
- 1427222
- Generic
- Parathyroid Hormone
- Class
- atc-h05
- Brands
- Natpara
- 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 chronic hypoparathyroidism when calcium levels cannot be adequately controlled with calcium and active vitamin D supplementation alone. May also be used in select cases of osteoporosis.
Parathyroid hormone increases serum calcium by stimulating bone formation and resorption, enhancing renal calcium reabsorption, and promoting intestinal calcium absorption through increased vitamin D activation.
Requires careful monitoring of serum calcium levels to avoid hypercalcemia. Contraindicated in patients with Paget's disease, skeletal malignancies, or history of bone radiation. Not recommended for patients at risk for osteosarcoma. Administered via subcutaneous injection, typically in the thigh or abdomen.
Official drug label
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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 29, 2026. · Read our editorial policy