Calcium and Alendronate: Can You Take Them Together?
Here's what FDA drug labeling and NIH supplement data show.
Interaction Found
What happens: Calcium impairs absorption of bisphosphonates used for osteoporosis.
What to do: Take bisphosphonates at least 30 minutes before calcium.
Source: FDA-approved drug labeling and NIH Office of Dietary Supplements fact sheets.
Learn more
Alendronate — full safety profile, side effects, and all known interactions.
Calcium — supplement labels containing this ingredient.
Frequently asked questions
Can I take Calcium with Alendronate?
Take bisphosphonates at least 30 minutes before calcium.
What happens if you take Calcium and Alendronate together?
Calcium impairs absorption of bisphosphonates used for osteoporosis.
What should I do if I take both?
Take bisphosphonates at least 30 minutes before calcium. Always consult your healthcare provider before combining supplements and medications.
SafeCheck provides drug interaction information from FDA-approved product labeling (openFDA). This is for informational purposes only and is not medical advice. Always consult your healthcare provider before making medication decisions.