Which medicines should you take apart from magnesium?

Some antibiotics and some osteoporosis medicines. NIH ODS gives these time gaps:

• Bisphosphonates for osteoporosis, such as alendronate: magnesium lowers their absorption, so take magnesium-rich supplements or medicines at least 2 hours before or after them.^[1]
• Tetracycline antibiotics, such as doxycycline, and quinolone antibiotics, such as ciprofloxacin and levofloxacin: magnesium binds them into compounds that do not dissolve. Take the antibiotic at least 2 hours before or 4 to 6 hours after magnesium.^[1]

Other medicines change the body's magnesium level:

• Loop diuretics, such as furosemide, and thiazide diuretics, such as hydrochlorothiazide, raise the loss of magnesium in urine.^[1]
• Potassium-sparing diuretics, such as amiloride and spironolactone, lower that loss.^[1]
• Proton pump inhibitors, stomach acid medicines such as esomeprazole, can cause low blood magnesium when taken for more than about a year. In a quarter of the cases the FDA reviewed, supplements did not correct it.^[1]

Some antacids and laxatives contain magnesium too, and the US upper limit counts magnesium from both supplements and medicines.^[1] People who take a medicine every day should ask a doctor or pharmacist first.^[1]