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Calciferol Oral

Generic Name: VITAMIN D - ORAL


Calciferol Oral Side Effects

If your doctor has prescribed this medication, remember that 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.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

  • nausea/vomiting
  • loss of appetite
  • unusual weight loss
  • constipation
  • increased thirst
  • increased urination
  • change in the amount of urine
  • bone/muscle pain
  • headache
  • mental/mood changes
  • weakness
  • tiredness
  • fast/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 -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Calciferol Oral Precautions

Before taking vitamin D, tell your doctor or pharmacist if you are allergic to propylene glycol (in the liquid form); or if you have any other allergies. This product may contain other inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have:

  • high calcium/vitamin D levels (hypercalcemia/hypervitaminosis D)
  • difficulty absorbing nutrition from food (malabsorption syndrome)


Before using this medication, tell your doctor or pharmacist your medical history, especially of:

  • kidney disease
  • kidney stones
  • liver disease
  • certain bowel diseases (Crohn's disease, Whipple's disease)
  • low levels of bile
  • untreated phosphate imbalance
  • heart/blood vessel disease
  • certain immune system disorder (sarcoidosis)
  • limited or no ability to walk (immobility)


During pregnancy, doses of vitamin D greater than the recommended dietary allowance should be used only when clearly needed. Discuss the risks and benefits with your doctor.

This medication may pass into breast milk. Consult your doctor before breast-feeding.

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