Zemplar treats and prevents high levels of parathyroid hormone associated with chronic kidney disease. Avoid using calcium supplements and antacids without your doctor's advice.

Zemplar Overview


Zemplar is a prescription medication used to treat high levels of the parathyroid hormone (PTH) in those with chronic kidney disease. Zemplar belongs to a group of drugs called vitamin D analogs, which help regulate PTH levels and increase calcium in your body.

This medication comes in a tablet form taken once a day or 3 times a week, with or without food.

This medication is also available in an injectable form to be given directly into a vein (IV) by a healthcare professional.

Common side effects of Zemplar include diarrhea, hypertension, vomiting, and dizziness. Do not drive or operate heavy machinery until you know how Zemplar affects you.



Patient Ratings for Zemplar

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  • Other
  • Hyperparathyroidism

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Uses of Zemplar

Zemplar is a prescription medication used to treat. 

  •   High levels of the parathyroid hormone (PTH) in patients with chronic kidney disease. High levels of PTH can lead to bone formation problems.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.



For more information on this medication choose from the list of selections below.

Zemplar Drug Class

Zemplar is part of the drug class:

Side Effects of Zemplar

Common side effects of Zemplar include:

  • Diarrhea
  • Hypertension
  • Dizziness
  • Vomiting

This is not a complete list of Zemplar side effects. Ask your doctor or pharmacist for more information. Call your doctor or pharmacist for medical advice about side effects

Tell your doctor if you have any side effect that bothers you or that does not go away. Serious side effects have been reported with Zemplar. You may report side effects to the FDA at 1-800-FDA-1088.