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Doctor insights on: Milk Of Magnesia Maximum Dosage

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Is taking expired milk of magnesia safe? I just took a dosage of this, for chronic constipation. Realized after that it expired in 1991. Am I ok?

Is taking expired milk of magnesia safe? I just took a dosage of this, for chronic constipation. Realized after that it expired in 1991. Am I ok?

Expired medications: Medications that are passed their expiration dates can be less effective or contaminated. Some medications could even decompose into products that can be harmful. It isn't worth the risk to take expired medications, so regularly clear out your medicine cabinet and replace with fresh medications. One dose is likely not going to be dangerous, but call your doctor or poison control if you get sick ...Read more

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Dr. Rex Mahnensmith
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Dr. Sandra Eleczko
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Magnesium Hydroxide (Definition)

Magnesium hydroxide is a laxative which is a ...Read more


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Me, early 60s. Sister, late 50s. My sister told me her doctor recommended small dose of milk of magnesia daily. I'm skeptical. ?

Me, early 60s.  Sister, late 50s.   My sister told me her doctor recommended small dose of milk of magnesia daily.  I'm skeptical. ?

She constipated?: What's the reason? Is she constipated or trying to get more magnesium? Certainly this is not the best way to manage chronic constipation. If you tend to get constipated, try eating more fiber and exercising regularly . If the problem persists, see the GI doctor. ...Read more

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How long does it take for milk of magnesia to work? I haven't gone in 4 days...

How long does it take for milk of magnesia to work? I haven't gone in 4 days...

A couple of hours: If it has not worked in a couple of hours you should either take another doe or switch to something like miralax in combination with enemas. ...Read more

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What are the medical uses for milk of magnesia?

Constipation: We used to order: "if no bm in am give 30cc mom in pm". ...Read more

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Dr. Rex Mahnensmith
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Is milk of magnesia bad for you if taken every nighy?

Yes: The main ingredient is magnesium which is considered safe for long term use if taken as directed by your doctor! ...Read more

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Will milk of magnesia work 2-4 hours after taking?

Yes usually: Yes usually the onset is within 4 hours. Following the directions on the package is important Diet adjustments and including pr obiotics such as yogurt and whole grains is advised. ...Read more

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Can you have a milk of magnesia overdose?

Can you have  a milk of magnesia overdose?

Yes: Especially if you have renal/kidney disease. It will also give you a great case of diarrhea. Magnesium is an essential mineral. It is poorly absorbed by the GI tract, thus it's use as a laxative. It is excreted by the kidneys, thus with renal disease, use caution. A good dose (overdose) by mouth will usually just give a really bad case of diarrhea. ...Read more

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Will milk of magnesia still work even if expired?

Yes: yes as long as it did not get much hotter than room temperature ...Read more

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Dr. Arnold Malerman
81 doctors shared insights

Milk Of Magnesia (Definition)

Milk of Magnesia is a laxative which is a ...Read more


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