How Long Does Diarrhea Last After Taking Milk Of Magnesia. Do not use Milk of Magnesia for longer than 7 days without medical advice. Less than 24 hrs.
I took it for relief of constipation around 400 am. Have something important to do around ten am n took it at 1130 pm and need it to stop before then. Diarrhea or frequent loose bowel movements may be bothersome and may occur in conjunction with abdominal cramping or bloating.
Milk of magnesia usually relieves constipation within 6 hours of taking it.
Milk of Magnesia Side Effects. I took it for relief of constipation around 400 am. Usually they take effect within 6-12 hours. Diarrhea can be acute short term or chronic long term.
