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Doctor insights on: Milk Of Magnesia Dosage

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Is taking expired milk of magnesia (magnesium hydroxide) 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 (magnesium hydroxide) 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

Dr. Sewa Legha
94 doctors shared insights

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 (magnesium hydroxide) daily. I'm skeptical. ?

Me, early 60s.  Sister, late 50s.   My sister told me her doctor recommended small dose of milk of magnesia (magnesium hydroxide) 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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Can you take milk of magnesia with lorazepam?

Can you take milk of  magnesia with lorazepam?

Yes but . . .: www.epocrates.com doesn't show any significant interactions between milk of magnesia (magnesium hydroxide) and Lorazepam but you really ought to address this w/your family doc and/or whoever prescribed your lorazepam. It's imperative that your docs know everything you're taking, even if an over-the-counter dietary supplement or a prescription medication from another doc. ...Read more

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What are the uses of milk of magnesia (magnesium hydroxide)?

What are the uses of milk of magnesia (magnesium hydroxide)?

MOM: Magnesium hydroxide is used as antacid & as laxative, and topically for canker sores (aphthos ulcers). Some believe it can be used topically on the scalp to releave dandruff. ...Read more

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How fast milk of magnesia (magnesium hydroxide) work?

How fast milk of magnesia (magnesium hydroxide) work?

1/2 HOUR TO 6 HOURS: It may work as an antacid within 30 minutes and as a laxative it may take 6 hours to 12 hours. ...Read more

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Can I use milk of magnesia (magnesium hydroxide) daily?

Can I use milk of magnesia (magnesium hydroxide) daily?

Not for long term: Side effects include hypermagnesemia which could cause heart rhythm trouble. Hypermagnesemia occurs specially in persons with slow kidneys. Would suggest alternating it with other cathartics if you have constipation. Several options exist i.e. Senna preparations, plymerizedethylene glycol preparations called MiraLAX (polyethylene glycol) or its generic form, flaxseed oil, and prune juice. May check with pharmacist too. ...Read more

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Is milk of magnesia (magnesium hydroxide) habit forming?

No it is not: No it is not habit forming but some people tend to use it over long period of time to help move bowels. ...Read more

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Can you have a milk of magnesia (magnesium hydroxide) overdose?

Can you have  a milk of magnesia (magnesium hydroxide) 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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What are the medical uses for milk of magnesia (magnesium hydroxide)?

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

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Will milk of magnesia (magnesium hydroxide) 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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Will milk of magnesia (magnesium hydroxide) 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

Dr. Debra Rosenblatt
102 doctors shared insights

Milk Of Magnesia (Definition)

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