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Os-Cal (calcium carbonate + vitamin D) is used to prevent and treat calcium deficiency. It is commonly recommended for people with osteoporosis, osteopenia, hypocalcemia, or those who do not get enough calcium from their diet.

Os-Cal is typically taken with food to enhance absorption of calcium carbonate. Your physician will specify the dose and number of daily doses based on your calcium needs and current levels.

Calcium carbonate (found in Os-Cal) requires stomach acid for absorption and is best taken with meals. Calcium citrate (Citracal) is absorbed independently of food and is often preferred for people taking acid-reducing medications or who have lower stomach acid.

Yes. Excessive calcium intake can cause hypercalcemia, leading to symptoms such as nausea, constipation, weakness, and in severe cases, kidney stones or impaired kidney function. Always follow your physician's recommended dose.

Calcium can interfere with the absorption of certain medications, including thyroid hormone replacements, some antibiotics, and bisphosphonates like alendronate. Take Os-Cal at least two hours apart from these medications and inform your physician of all drugs you are taking.

Os-Cal is generally not recommended for people with hypercalcemia, severe kidney disease or kidney stones related to calcium, or certain conditions causing elevated vitamin D levels such as sarcoidosis. Your physician will evaluate your history before prescribing.

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Yes. Doctronic connects you with licensed physicians whose consultations are doctor-reviewed, audited for quality, and conducted on a HIPAA-compliant platform. Your health and privacy are protected at every step.