calcitriol (vitamin D3)

Pronunciation: kal si TRYE ol

Brand: Rocaltrol

Calcitriol 0.25 mcg-ROX

oval, yellow, imprinted with 547

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Calcitriol 0.25 mcg-TEV

oval, orange/yellow, imprinted with 93 657

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Calcitriol 0.5 mcg-TEV

oval, orange/yellow, imprinted with 93 658

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Rocatrol 0.25 mg

oval, orange, imprinted with ROCALTROL 0.25 ROCHE

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

Multum donot

You should not use this medication if you have high levels of calcium or vitamin D in your blood, or if you have ever had an allergic reaction to calcitriol or other forms of vitamin D.

Multum water

Drink plenty of fluids unless your doctor has told you to restrict your fluid intake.

Multum emt

Call your doctor if you have ongoing vomiting or diarrhea, or if you are sweating more than usual. You can easily become dehydrated while taking this medication, which can lead to a serious electrolyte imbalance.

Multum donot

Do not take other vitamin or mineral supplements unless your doctor has told you to.

Multum donot

Avoid using antacids without your doctor's advice. Use only the type of antacid your doctor recommends. Some antacids can make it harder for your body to absorb calcitriol.

To be sure this medication is helping your condition, your blood will need to be tested on a regular basis. Do not miss any scheduled appointments.

Calcitriol is only part of a complete program of treatment that may also include a special diet. Follow your diet and medication routines very closely. You should become very familiar with the list of foods you must eat or avoid to help control your condition.

What is calcitriol?

Calcitriol is vitamin D3. Vitamin D is important for the absorption of calcium from the stomach and for the functioning of calcium in the body.

Calcitriol is used to treat hyperparathyroidism (overactive parathyroid glands) and metabolic bone disease in people who have chronic kidney failure and are not receiving dialysis.

Calcitriol is also used to treat calcium deficiency (hypocalcemia) and metabolic bone disease in people who are receiving dialysis.

Calcitriol is also used to treat calcium deficiency in people with hypoparathyroidism (underactive parathyroid glands) caused by surgery, disease, or other conditions.

Calcitriol may also be used for purposes not listed in this medication guide.

What should I discuss with my healthcare provider before taking calcitriol?

Multum donot

You should not use this medication if you have high levels of calcium or vitamin D in your blood, or if you have ever had an allergic reaction to calcitriol or other forms of vitamin D.

To make sure you can safely take calcitriol, tell your doctor about all of your medical conditions.

Multum nopreg

FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

Multum nobrfeed

Calcitriol can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I take calcitriol?

Take this medication exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.

Your doctor may occasionally change your dose to make sure you get the best results from this medication.

Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

Multum water

Drink plenty of fluids unless your doctor has told you to restrict your fluid intake.

Multum emt

Call your doctor if you have ongoing vomiting or diarrhea, or if you are sweating more than usual. You can easily become dehydrated while taking this medication, which can lead to a serious electrolyte imbalance.

To be sure this medicine is helping your condition and is not causing harmful effects, your blood will need to be tested often. Visit your doctor regularly.

Calcitriol is only part of a complete program of treatment that may also include a special diet. It is very important to follow the diet plan created for you by your doctor or nutrition counselor. You should become very familiar with the list of foods you must eat or avoid to help control your condition.

Multum emt

If you need to be on bed-rest or have any type of surgery, your dose or testing needs may change. Follow your doctor's instructions.

Multum rt

Store at room temperature away from moisture, light, and heat.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Multum emt

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include some of the serious side effects listed in this medication guide.

What should I avoid while taking calcitriol?

Multum donot

Do not take other vitamin or mineral supplements unless your doctor has told you to.

Multum donot

Avoid using antacids without your doctor's advice. Use only the type of antacid your doctor recommends. Some antacids can make it harder for your body to absorb calcitriol.

What are the possible side effects of calcitriol?

Multum emt

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Multum donot

Stop using calcitriol and call your doctor at once if you have a serious side effect such as:

  • weakness, headache, drowsiness;
  • nausea, vomiting, stomach pain, constipation;
  • loss of appetite;
  • dry mouth, increased thirst;
  • metallic taste in your mouth;
  • urinating more than usual;
  • fast, slow, or uneven heart rate;
  • changes in behavior;
  • muscle pain, bone pain, muscle weakness, loss of height;
  • slow growth (in a child taking calcitriol); or
  • severe pain in your upper stomach spreading to your back.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect calcitriol?

Tell your doctor about all other medicines you use, especially:

  • digoxin (digitalis, Lanoxin, Lanoxicaps);
  • cholestyramine (Questran, Prevalite);
  • ketoconazole (Nizoral);
  • lanthanum (Fosrenol);
  • seizure medication such as phenytoin (Dilantin) or phenobarbital (Solfoton);
  • steroids such as prednisone, fluticasone (Advair, Flovent), mometasone (Asmanex, Nasonex), dexamethasone (Cortastat, DexPak, Decadron) and others; or
  • a (water pill) diuretic such as hydrochlorothiazide (HCTZ, Esidrix, Hydrodiuril, Microzide,Oretic), chlorothiazide (Diuril), chlorthalidone (Hygroton, Thalitone), indapamide (Lozol), metolazone (Mykrox, Zaroxolyn), and others.

This list is not complete and other drugs may interact with calcitriol. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about calcitriol.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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