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A member asked:
How long before magnesium pills will work for constipation? i took 500mg this afternoon (6-7 hours ago) and no significant bowel movement so far.
A doctor has provided 1 answer
Several days: 500 mg is not a huge dose. I would recommend 500 mg twice daily with plenty of water until you start having regular bowel movements, then cut back on the magnesium while maintaining the water intake.
Answered 1/19/2017
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