labeling.
Time matters — separate magnesium from interacting medications by the recommended hours.
Quick Reference Table: Common Magnesium Interactions
MEDICATION/SUPPLEMENT TYPE OF INTERACTION SUGGESTED TIMING ADJUSTMENT
Tetracycline/Quinolone Antibiotics Reduced antibiotic absorption 2–6 hours apart
Bisphosphonates Reduced drug absorption At least 2 hours apart
Calcium Channel Blockers Possible excessive blood pressure lowering Monitor closely; consult doctor
Sulfonylureas Increased risk of low blood sugar Monitor blood sugar carefully
Levothyroxine Reduced thyroid hormone absorption At least 4 hours apart
PPIs (long-term) Possible magnesium depletion Periodic level checks
High-Dose Zinc/Calcium/Iron Competition for absorption Stagger doses throughout day
Final Thoughts
labeling.
Time matters — separate magnesium from interacting medications by the recommended hours.
Quick Reference Table: Common Magnesium Interactions
MEDICATION/SUPPLEMENT TYPE OF INTERACTION SUGGESTED TIMING ADJUSTMENT
Tetracycline/Quinolone Antibiotics Reduced antibiotic absorption 2–6 hours apart
Bisphosphonates Reduced drug absorption At least 2 hours apart
Calcium Channel Blockers Possible excessive blood pressure lowering Monitor closely; consult doctor
Sulfonylureas Increased risk of low blood sugar Monitor blood sugar carefully
Levothyroxine Reduced thyroid hormone absorption At least 4 hours apart
PPIs (long-term) Possible magnesium depletion Periodic level checks
High-Dose Zinc/Calcium/Iron Competition for absorption Stagger doses throughout day
Final Thoughts
