Cinacalcet is used to treat increased amounts of a certain hormone (parathyroid) in people with long-term kidney disease who are on dialysis. It is also used to treat increased amounts of calcium in people with an overactive parathyroid gland or in people with cancer of the parathyroid gland. Cinacalcet works by decreasing the amount of parathyroid hormone, calcium, and phosphorus in your body. Having the right amount of these substances in your body helps to prevent bone disease.
The manufacturer directs not to split the tablet before taking it. However, many similar drugs (immediate-release tablets) can be split/crushed. Follow your doctor's directions on how to take this medication.
The dosage is based on your medical condition, response to treatment, and laboratory tests.
Take this medication regularly in order to get the most benefit from it. Remember to take it at the same time(s) each day.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Cinacalcet can cause low calcium blood levels. Your doctor will check your calcium blood levels while your are taking this medication. Tell your doctor right away if you have any of the following symptoms of low calcium levels: numb/tingling skin, severe muscle spasms, seizures, unusual tiredness, fast/irregular/pounding heartbeat.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Before taking cinacalcet, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: low levels of calcium in the blood (hypocalcemia), seizures.
Very low levels of calcium can affect the heart rhythm (QT prolongation, ventricular arrhythmias). This risk may be increased if you have certain conditions or are taking drugs that can affect the heart rhythm. Before taking cinacalcet, tell your doctor of all the drugs you take and if you have heart rhythm problems or other heart problems (such as heart failure, low blood pressure).
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring.
To help your doctor and pharmacist give you the best care, be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. While using this product, do not start, stop, or change the dosage of any other medicines you are using without your doctor's approval.
Keep a list of all the products you use. Share the list with your doctor and pharmacist to reduce your risk for serious medication problems.
If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe muscle spasms, seizures.
Do not share this medication with others.
Laboratory and/or medical tests (such as calcium, phosphorus, parathyroid hormone levels) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
Store at room temperature at 77 degrees F (25 degrees C) away from light and moisture. Brief storage between 59-86 degrees F (15-30 degrees C) is permitted. Do not store in the bathroom. Keep all medications away from children and pets.
Information last revised October 2013. Copyright(c) 2013 First Databank, Inc.
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