It sounds like you’re starting a warning about drug interactions with magnesium.
A more complete version would be:
“Never use magnesium supplements at the same time as certain medications, including:”
- Tetracycline antibiotics (e.g., doxycycline, tetracycline)
- Fluoroquinolone antibiotics (e.g., ciprofloxacin, levofloxacin)
- Bisphosphonates (e.g., alendronate, used for osteoporosis)
- Levothyroxine (thyroid hormone replacement)
- Some HIV medications (like integrase inhibitors such as dolutegravir or bictegravir)
- Iron or zinc supplements (can reduce absorption of each other)
The main issue is that magnesium can bind to these drugs in the gut and reduce their absorption, making them less effective.
A common workaround is spacing doses by at least 2–6 hours, depending on the medication.
If you want, tell me the exact medication you’re thinking about and I can check the interaction more precisely.
