Along with its needing 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 was happen
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 don't needed medical attention. These side effects may go away during treat as your body adjusts to the drug. However, check with your health care professional if the following side effect continues or is bothersome:
Less common - with oral magnesium
Diarrhea
More common side effects not listed above may also occur in some individuals. If you have any other problems, check with your health care professional.