How Often Can I Take Miralax While Pregnant?

Constipation is a common and uncomfortable symptom during pregnancy. Hormonal shifts, particularly an increase in progesterone, can relax intestinal muscles, slowing down the movement of food through the digestive tract. This slower transit allows more water to be absorbed from stool, making it harder to pass. The growing uterus also exerts pressure on the bowels, contributing to the issue. About 16% to 39% of women experience constipation at some point during pregnancy, with some studies indicating a global prevalence of 32.4%.

How Miralax Works and Its Pregnancy Safety

Miralax, containing polyethylene glycol 3350 (PEG 3350), is an osmotic laxative. It works by drawing water into the colon, softening stool and facilitating easier bowel movements. This mechanism prevents the reabsorption of water, keeping the stool hydrated and promoting regularity.

Polyethylene glycol 3350 is generally considered safe during pregnancy due to minimal bloodstream absorption, posing a very low risk to the developing fetus. While human studies specifically on Miralax use in pregnancy are limited, its safety profile makes it a common choice for healthcare providers. The American College of Gastroenterology supports its use when other methods have not provided relief.

Guidelines for Taking Miralax While Pregnant

Always consult a healthcare provider and follow specific guidelines when taking Miralax during pregnancy. The typical dose is 17 grams of powder (one capful) mixed into 4 to 8 ounces of liquid like water, juice, or coffee. Consume this mixture once daily to relieve constipation.

Miralax should be used at the lowest effective dose and for the shortest duration necessary to achieve relief. While it can be used for short-term relief, some individuals may require it for longer periods under a doctor’s guidance. It is important not to exceed the recommended daily dose or use it for more than seven consecutive days without medical supervision. If constipation persists despite using Miralax, or if any concerning symptoms develop, medical advice should be sought.

Natural Approaches to Constipation During Pregnancy

Natural approaches can help manage constipation during pregnancy before considering medications. Increasing dietary fiber is a primary strategy; aim for 25 to 30 grams daily. Soluble fiber (oats, beans, apples, psyllium) and insoluble fiber (whole grains, nuts, leafy greens) contribute to softer, bulkier stools. Gradually increasing fiber intake, rather than a sudden boost, can help prevent bloating or discomfort.

Adequate hydration also prevents and alleviates constipation. Pregnant individuals should aim for 8 to 12 cups (2 to 3 liters) of water daily to keep stools soft and moving smoothly. Water-rich foods like fruits and vegetables further contribute to fluid intake. Regular, gentle physical activity also stimulates bowel movements and improves intestinal function. Activities like walking, swimming, or prenatal yoga for 20 to 30 minutes most days can be beneficial.

When to Seek Medical Advice

While constipation is common during pregnancy, certain symptoms warrant immediate medical attention. Consult your doctor if constipation persists or worsens despite trying home remedies and using Miralax. Seek medical attention if constipation is accompanied by severe abdominal pain, as this could indicate a more serious issue.

Other concerning symptoms include rectal bleeding, passing mucus in stool, or an inability to pass gas. Any sudden changes in bowel habits that last for more than two weeks, or if constipation alternates with diarrhea, should also prompt a medical evaluation. These symptoms could be signs of an underlying condition that requires professional assessment and treatment.