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Calciferol

Last reviewed on RxList: 2/22/2017
Calciferol Side Effects Center

Last reviewed on RxList 11/11/2016

Calciferol (ergocalciferol) is vitamin D2 used to treat hypoparathyroidism (decreased functioning of the parathyroid glands), and is also used to treat rickets (softening of the bones caused by vitamin D deficiency) or low levels of phosphate in the blood (hypophosphatemia). Calciferol is available in generic form. Vitamin D at normal doses usually has no side effects. Contact your doctor if you have any serious side effects of Calciferol, including:

  • thinking problems,
  • changes in behavior,
  • irritability,
  • urinating more than usual,
  • chest pain,
  • shortness of breath, or
  • early signs of vitamin D overdose (weakness, metallic taste in your mouth, weight loss, muscle or bone pain, constipation, nausea, and vomiting).

Too much vitamin D can cause harmful high calcium levels. Tell your doctor if you have signs of high vitamin D/calcium levels including nausea, vomiting, constipation, loss of appetite, increased thirst, increased urination, mental/mood changes, or unusual tiredness.

To treat Vitamin D resistant rickets the dose of Calciferol is 12,000 to 500,000 USP units daily. To treat hypoparathyroidism, the dose is 50,000 to 200,000 USP units daily taken with calcium lactate 4 g, six times per day. The range between therapeutic and toxic doses is narrow. Dosage must be individualized under close medical supervision. Calciferol may interact with sucralfate, mineral oil (sometimes taken as a laxative), seizure medication, steroids, digoxin or diuretics (water pills). Tell your doctor all medications you are taking. During pregnancy, doses of vitamin D greater than the recommended dietary allowance should be used only when prescribed. This medication passes into breast milk. Consult your doctor before breastfeeding.

Our Calciferol (ergocalciferol) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

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.

Calciferol Consumer Information

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

Call your doctor at once if you have a serious side effect such as:

  • thinking problems, changes in behavior, feeling irritable;
  • urinating more than usual;
  • chest pain, feeling short of breath; or
  • early signs of vitamin D overdose (weakness, metallic taste in your mouth, weight loss, muscle or bone pain, constipation, nausea, and vomiting).

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.

Read the entire detailed patient monograph for Calciferol (Ergocalciferol)

Calciferol Professional Information

SIDE EFFECTS

Hypervitaminosis D is characterized by effects on the following organ system:

Renal

Impairment of renal function with polyuria, nocturia, polydipsia, hypercalciuria, reversible azotemia, hypertension, nephrocalcinosis, generalized vascular calcification, or irreversible renal insufficiency which may result in death.

CNS

Mental retardation.

Soft Tissues

Widespread calcification of the soft tissues, including the heart, blood vessels, renal tubules, and lungs.

Skeletal

Bone demineralization (osteoporosis) in adults occurs concomitantly.

Decline in the average rate of linear growth and increased mineralization of bones in infants and children (dwarfism), vague aches, stiffness, and weakness.

Gastrointestinal

Nausea, anorexia, constipation.

Metabolic

Mild acidosis, anemia, weight loss.

Read the entire FDA prescribing information for Calciferol (Ergocalciferol)

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© Calciferol Patient Information is supplied by Cerner Multum, Inc. and Calciferol Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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