Miralax dosage

What is Miralax and how to use it

Chemical denomination of Miralax is Polyethylene Glycol 3350. Miralax is a medicine which is used for the treatment of irregular bowel movements or occasional constipation. This laxative stimulates bowel movements by increasing the amount of water in the intestinal tract. That is why in no case Miralax should be used if the patient has a bowel obstruction or intestinal blockage. Remember, that improper usage of Miralax could lead to different side effects that could threaten patient’s life. Important note is also that Miralax should not be taken for the period of more than two weeks if other is not prescribed by a doctor. People who are suffering from such eating disorders as bulimia or anorexia should take Miralax only after prior consultation with physician. While consulting with a doctor it is necessary for a patient to provide information regarding strong stomach pain and ulcerative colitis. The doctor also should be informed whether the patient has irritable bowel syndrome, nausea or whether the patient’s bowel habits have had been suddenly changed for the period of weeks or longer. Due to the fact that usage of Miralax could lead to a certain side effects it is very important that the doctor should be fully informed about any drugs which the patient is allergic to. The effect of Miralax usage should be observed within one or three days. It is quite normal that after taking the medicine patient’s stools become loose or even watery. However, if after 3 days of Miralax treatment the patient still suffers of constipation or irregular bowel movement the daily dosage of the medicine in no case should be increased. Although it is not known how Miralax affects an unborn baby or whether it affects it at all, pregnant women are recommended to see a doctor before taking the medicine. The same recommendation applies to those women who are planning to be pregnant or are breast feeding a baby.

The list of diseases or syndromes which a patient must inform a doctor about in case the patient has any of them includes, in addition to the listed above:

Kidney diseases


Miralax is produced in the form of powder and should be taken orally. The medicine dosage is usually 17 grams daily however it is a subject of prior doctor’s approval. First, the proper amount of the medicine should be dissolved and stirred in approximately 8 ounces of water and then take it. It is possible also to dissolve Miralax in beverages such as tea, coffee, soda or juice, whichever you like. The beverage could be hot, cold or room temperature. Most manufacturers supply Miralax with a measuring cap so that the proper amount (about one teaspoon) could be easely determined. In any case there always will be a detailed instruction about the daily dosage of Miralax and about maximum period of it usage. Please mind, Miralax (Polyethilene Glycol 3350) should be taken for no more than once a day, regardless of the brand or manufacturer. Do not exceed the dosage and always take it only once a day even if you do not feel any improvement of your conditions. Keep away from children. Follow the manufacturer instructions about storage conditions. Miralax ideally must be kept at a temperature of 25 degrees of Centigrade but not above 30 or below 15 degrees of Centigrade. It means, that you should not keep Miramax in a refrigerator. Please also note that Miralax in some cases can be used for the purposes that are not listed above.

It is recommended that you should see your doctor before taking Miralax. Children at the age of 16 years or under must consult a doctor.