Magnesium Supplements (Systemic)

Side Effects of This Dietary Supplement

Along with its needed effects, a dietary supplement may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your health care professional immediately if any of the following side effects occur:

Rare (with injectable magnesium only)

Dizziness or fainting; flushing; irritation and pain at injection site - for intramuscular administration only; muscle paralysis; troubled breathing

Symptoms of overdose (rare in individuals with normal kidney function)

Blurred or double vision; coma; dizziness or fainting; drowsiness (severe); increased or decreased urination; slow heartbeat; troubled breathing

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your health care professional if the following side effect continues or is bothersome:

Less common (with oral magnesium)

Diarrhea

Other side effects not listed above may also occur in some individuals. If you notice any other effects, check with your health care professional.