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NATPARA is a prescription parathyroid hormone used with calcium and vitamin D to control low blood calcium (hypocalcemia) in people with low parathyroid hormone blood levels (hypoparathyroidism). It is only for people who do not respond well to treatment with calcium and active forms of vitamin D alone, because it may increase the possible risk of bone cancer (osteosarcoma).

NATPARA was not studied in people with hypoparathyroidism caused by calcium-sensing receptor mutations. It was not studied in people who get sudden hypoparathyroidism after surgery. It is not known if NATPARA is safe and effective for children 18 years of age and younger. NATPARA should not be used in children and young adults whose bones are still growing.

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NATPARA is a prescription parathyroid hormone used with calcium and vitamin D to control low blood calcium (hypocalcemia) in people with low parathyroid hormone blood levels (hypoparathyroidism). It is only for people who do not respond well to treatment with calcium and active forms of vitamin D alone, because it may increase the possible risk of bone cancer (osteosarcoma).

NATPARA was not studied in people with hypoparathyroidism caused by calcium-sensing receptor mutations. It was not studied in people who get sudden hypoparathyroidism after surgery. It is not known if NATPARA is safe and effective for children 18 years of age and younger. NATPARA should not be used in children and young adults whose bones are still growing.

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Resources to support you

We have developed practical, downloadable resources to help you navigate hypoparathyroidism treatment with NATPARA and OnePath®.

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NATPARA Patient Brochure

Helps you navigate hypoparathyroidism, treatment with NATPARA, and available resources.

Download

Instructions for Use

A reference guide that outlines the steps involved in taking NATPARA.

Download

Instructions for Use Reminder Brochure

Provides important reminders and tips for mixing and administering NATPARA.

Download

NATPARA Storage Card

Guidelines on how you should store your NATPARA.

Download

Patient Consent Form

Complete this form to register with OnePath.

Hypoparathyroidism community supporta

There is support for people with hypoparathyroidism. Find a network of support today!

HypoPARthyroidism Association, Inc.

Provides online resources and organizes conferences to educate and support those touched by hypoparathyroidism.

Learn More
Light of Life Foundation checkyourneck.com

Works to improve the quality of life of thyroid cancer patients through education and research.

Learn More
National Organization for Rare Disorders

Offers information about clinical trials and organizes events that support patients and families affected by hypoparathyroidism.

Learn More
ThyCa: Thyroid Cancer Survivors Association, Inc.

Provides free support services, educational events, and thyroid cancer research grants.

Learn More

aShire provides funding to the above organizations in support of efforts that include, but are not limited to, research, education, meetings/events, and patient support.

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Important Safety Information

What is the most important information I should know about NATPARA?

Warning: Possible bone cancer (osteosarcoma).

  • During animal drug testing, NATPARA caused some rats to develop a bone cancer called osteosarcoma.
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Important Safety Information

What is the most important information I should know about NATPARA?

Warning: Possible bone cancer (osteosarcoma).

  • During animal drug testing, NATPARA caused some rats to develop a bone cancer called osteosarcoma. It is not known if people who take NATPARA will have a higher chance of getting osteosarcoma. Tell your doctor right away if you have pain in any areas of your body that does not go away, or any new or unusual lumps or swelling under your skin that is tender to touch.
  • NATPARA is only available through the NATPARA Risk Evaluation and Mitigation Strategy (REMS) Program. The purpose of the NATPARA REMS program is to inform patients about the potential risk of osteosarcoma associated with the use of NATPARA. For more information about this REMS program, call 1-855-NATPARA (628-7272) or go to www.NATPARAREMS.com.

NATPARA may cause other serious side effects, including:

High blood calcium (hypercalcemia)

  • NATPARA can cause some people to have a higher blood calcium level than normal.
    • Your doctor should check your blood calcium before you start and during your treatment with NATPARA.
    • Tell your doctor if you have nausea, vomiting, constipation, low energy, or muscle weakness. These may be signs that you have too much calcium in your blood.

Low blood calcium (hypocalcemia)

  • People who stop using or miss a dose of NATPARA may have an increased risk of severe low blood calcium levels.
  • Tell your doctor if you have tingling of your lips, tongue, fingers and feet, twitching of face muscles, cramping of feet and hands, seizures, depression, or have problems thinking or remembering.

Tell your doctor right away if you have any of these signs and symptoms of high or low blood calcium levels.

Who should not use NATPARA?

  • Do not use NATPARA if you are allergic to parathyroid hormone or any of the ingredients in NATPARA.

What should I tell my healthcare provider before using NATPARA?

  • Before you start using NATPARA, tell your doctor about all of your medical conditions. Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

What are the possible side effects of NATPARA?

  • NATPARA may cause serious side effects like allergic (hypersensitivity) reaction, including anaphylaxis. Tell your healthcare provider or get emergency medical help right away if you have any of the following symptoms of an allergic reaction:
    • swelling of your face, lips, mouth, or tongue
    • breathing problems
    • fainting, dizziness, feeling lightheaded (low blood pressure)
    • fast heartbeat
    • itching
    • rash
    • hives
  • The most common side effects of NATPARA include: tingling, tickling, or burning feeling of the skin, low or high blood calcium, headache, nausea, reduced sense of touch or sensation, diarrhea, vomiting, pain in joints, too much calcium in urine, and pain in limbs.

These are not all the possible side effects of NATPARA. For more information, talk with your doctor.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

Please see Prescribing Information, Medication Guide, and Instructions for Use.