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Calciferol Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
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. 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), contact your doctor. Too much vitamin D can cause harmful high calcium levels.
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 breast-feeding.
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.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Calciferol in Detail - Patient Information: Side Effects
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).
Read the entire detailed patient monograph for Calciferol (Ergocalciferol)
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Calciferol Overview - Patient Information: Side Effects
If your doctor has directed you to take 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.
Too much vitamin D can cause harmful high calcium levels. Tell your doctor right away if any of these signs of high vitamin D/calcium levels occur: nausea/vomiting, constipation, loss of appetite, increased thirst, increased urination, mental/mood changes, unusual tiredness.
A very serious allergic reaction to this drug is rare. However, get medical help right away 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.
Read the entire patient information overview for Calciferol (Ergocalciferol)
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Calciferol FDA Prescribing Information: Side Effects
Hypervitaminosis D is characterized by effects on the following organ system:
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.
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.
Read the entire FDA prescribing information for Calciferol (Ergocalciferol)
Additional Calciferol Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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