Drug interactions
Calcium carbonate + Dexamethasone
Severity: Minor
Calcium carbonate and Dexamethasone: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Dexamethasone lowers intestinal calcium absorption and raises urinary calcium excretion. Prolonged use contributes to osteoporosis, so calcium supplementation is often given purposely.
What this interaction means in plain words
Calcium carbonate and Dexamethasone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Calcium carbonate belongs to Gastrointestinal Tract; Dexamethasone belongs to Endocrine.
Why it happens
Glucocorticoids impair intestinal calcium absorption and increase renal calcium excretion.
What to do
Provide calcium and vitamin D during long-term therapy and assess bone density as indicated.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Calcium carbonate
Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Calcium carbonate with Dexamethasone?
MediHelp rates the interaction as minor. Calcium carbonate and Dexamethasone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dexamethasone lowers intestinal calcium absorption and raises urinary calcium excretion. Prolonged use contributes to osteoporosis, so calcium supplementation is often given purposely.
How serious is the interaction between Calcium carbonate and Dexamethasone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Provide calcium and vitamin D during long-term therapy and assess bone density as indicated.
What other medicines interact with Calcium carbonate?
MediHelp also lists interactions of Calcium carbonate with, for example, Acalabrutinib, Alendronate, Amlodipine-hydrochlorothiazide-valsartan. The full list is on the Calcium carbonate page.
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