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Polylax™ and magnesium hydroxide


This article is a continuation of our previous article titled 'Faecal Retention and Constipation' (Click button below to access this earlier article). Now we will look at two products that many of our patients are using in their treatment protocol.

Polylax™ and Magnesium Hydroxide

Both Polylax™ and Magnesium hydroxide (also commonly referred to as Milk of Magnesia) are classified as osmotic laxatives.

Osmotic laxatives promote the retention of water within the bowel → this increases the water content of stool → resulting in an increase in gastrointestinal motility and stool transit time → and therefore, evacuation of colonic contents. Osmotic laxatives work by drawing water into the stool; thereby softening the stool so it is easier to pass.


Polylax™ comes as a white powder, which is flavourless, colourless (once dissolved in liquid) and contains no artificial sweeteners or preservatives. It is usually mixed into water or juice and taken as a once a day dose, as needed. However, this dose may vary so directions on the prescription label must be read and followed carefully (always ask us, or your practitioner to explain any part of the instructions you do not understand).

Magnesium Hydroxide

The Magnesium Hydroxide will usually be made in a capsule form at a dose of 650mg. Magnesium is a naturally occurring mineral which is vital for many systems in the body especially the muscles and nerves. As stated above, Magnesium hydroxide will increase water in the intestines to induce defecation. It may also be used to relieve heartburn and indigestion, via its ability to help neutralise stomach acid. Magnesium hydroxide should be taken only as directed; the prescription label must be read and followed carefully.

Polylax™ and Magnesium Hydroxide

Polylax™ and Magnesium Hydroxide should not be taken over longer periods of time than your practitioner advises. Once the constipation / faecal retention eases, you should gradually reduce your dose e.g. by one scoop every second day, until it is no longer required (unless your practitioner has told you otherwise).

Please do remember

A well balanced diet containing plenty of natural fibre (e.g. whole grain products and fresh fruit and vegetables) and 6 to 8 full glasses of water each day, combined with regular (daily) exercise, are vitally important for maintaining healthy bowel function.

These life practices will always take priority over any form of supplementation.

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