Is Milk Of Magnesia A Stimulant Laxative?

Is milk of magnesia a stimulant laxative?

Many people believe that Milk of magnesia is a stimulant laxative, but this is not true. Milk of magnesia acts as an osmotic laxative in your digestive tract and draws water into the intestines to soften stools so they can pass more easily.

It does not act on the muscles like a stimulant laxative would do. Some examples of stimulant laxatives are Senna, Dulcolax, bisacodyl, cimetidine (Tagamet), or cascara sagrada bark extract (herbal supplement).

Is Milk of Magnesia a Saline Laxative?

Yes, it is.

What are saline laxatives? One example is sodium phosphate rectal suppository which can be used for constipation and as an enema to cleanse the lower bowel before surgery or colonoscopy procedures.

Another type is magnesium citrate osmotic cathartic where you mix with water in a glass or bottle and drink it down quickly over 15 minutes. It behaves like milk-of-magnesia but works faster and has more cleansing results than that product does.

Is milk of magnesia considered a stimulant laxative?

No, it is not.

Stimulant laxatives are medications that stimulate the colon and help push along fecal contents, relieving constipation. Examples of stimulant laxatives include senna, Dulcolax, bisacodyl (Bisac-Evac), cimetidine (Tagamet) or cascara sagrada bark extract which is a herbal supplement.

Is Milk of magnesia a gentle laxative? Yes, it is one of the gentlest around. It contains magnesium hydroxide and has an osmotic effect that helps soften stools so they can pass more easily.

What’s wrong with taking milk of magnesia for constipation if it’s not habit forming and you don’t take too much? Nothing! In fact, many people use this product to help prevent occasional constipation because the long -term use of stimulant laxatives can cause dependence and side effects.

The most common type of laxative is a fiber supplement, which you take by mouth with water or other liquids. You should drink at least eight glasses per day to be effective as long-term constipation may lead to problems such as hemorrhoids, anal fissures (tiny cuts in the skin near your anus), fecal impaction (a hard lump that forms inside your rectum blocking stool) and painful bowel movements.

Fiber supplements are not habit forming but if they do produce an effect it will vary depending on how much you have been eating beforehand. The best way to prevent this from happening is to eat plenty of high-fiber foods like fresh vegetables.

Can Milk of Magnesia Be Used As A Laxative?

You may use milk of magnesium to evacuate gas or for accidental constipation after surgery, if it’s been more than 12 hours since eating fiber-rich food (like meat), if you’re taking certain medicines (aspirin, ibuprofen) or have any chronic intestinal disorders such as ulcerative colitis.

Some doctors will prescribe a dose of milk of magnesium, so visit your physician if you think it would be helpful for your situation.


Milk of magnesia is not a stimulant laxative, it’s an osmotic laxative. It works by pulling water into your intestines and causing them to expand which stimulates bowel movements.

If you have been eating plenty of high-fiber foods like fresh vegetables then milk of magnesium should be used as needed for gas or constipation instead of being taken every day so the body can go on cleaning itself naturally with fiber rather than relying on this medication all the time.

The best way to prevent this from happening is to eat plenty of high-fiber foods like fresh vegetables.

Some doctors will prescribe a dose if milk of magnesium in order to help you get regular again. Drinking lots of fluids and eating well will help your cause as well.

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