Chelated Calcium Magnesium

Potential Drug Interactions (6)

Based on known supplement-drug interactions from FDA and NIH data. Always consult your healthcare provider.

• moderate

  calcium + Tetracycline antibiotics

  Calcium binds tetracyclines in the gut, reducing antibiotic absorption by up to 50%.

  Separate doses by at least 2 hours.

• moderate

  calcium + Fluoroquinolone antibiotics

  Calcium chelates fluoroquinolones, significantly reducing their absorption.

  Take fluoroquinolones 2 hours before or 6 hours after calcium supplements.

• moderate

  calcium + Levothyroxine

  Calcium reduces absorption of thyroid hormone replacement.

  Separate doses by at least 4 hours.

• moderate

  calcium + Bisphosphonates

  Calcium impairs absorption of bisphosphonates used for osteoporosis.

  Take bisphosphonates at least 30 minutes before calcium.

• moderate

  magnesium + Fluoroquinolone antibiotics

  Magnesium chelates fluoroquinolones, reducing their absorption and effectiveness.

  Take fluoroquinolones 2 hours before or 6 hours after magnesium.

• moderate

  magnesium + Bisphosphonates

  Magnesium reduces absorption of bisphosphonates.

  Separate doses by at least 2 hours.