MiraLAX Polvo Laxante 30 Dosis, 510 g

What is MiraLAX and how does it work?

MiraLAX is an over-the-counter osmotic laxative that contains macrogol (polyethylene glycol 3350) as its active ingredient. Its mechanism of action consists of retaining water in the intestine, which softens the stool and naturally stimulates bowel movement. It is indicated for the relief of occasional constipation and provides a gentle effect, without gas or cramps, which makes it a highly valued option by users.

Being a colorless and tasteless powder, it dissolves easily in any drink, making it easy to consume. Each dose contains 17 g of macrogol, and the package includes 30 doses, enough for a treatment of up to 30 days as needed.

What types of laxatives are there?

In the market we find several types of laxatives, each with a different mechanism of action:

• Osmotic laxatives (like MiraLAX): draw water into the intestine to soften stools. They are gentle and safe for occasional use.
• Stimulant laxatives (e.g., senna, bisacodyl): act by irritating the intestinal lining to cause evacuation. They are usually faster but can cause cramps.
• Bulk-forming laxatives (e.g., psyllium, fiber): increase stool volume to facilitate passage. They require drinking plenty of water.
• Lubricant laxatives (e.g., mineral oil): coat the stool and intestine to facilitate passage. They are not recommended for long-term use.

MiraLAX belongs to the osmotic group and stands out for its tolerance profile, being one of the most recommended options by pharmacists for occasional constipation.

Key Ingredients: Macrogol (Polyethylene Glycol 3350)

Macrogol, also known as polyethylene glycol (PEG) 3350, is a synthetic polymer that is not absorbed in the gastrointestinal tract. Its ability to retain water makes it an effective osmotic agent. Unlike other laxatives, it does not alter electrolyte balance when used at recommended doses, making it safe for most adults.

Macrogol is backed by decades of clinical use and is one of the most studied ingredients in the treatment of occasional constipation. The dose of 17 g per day is standard for adults and children over 6 years of age (always under medical supervision in children).

How to choose the right laxative?

When choosing a laxative, it is important to consider the desired speed, tolerance, and the cause of constipation. For gentle and predictable relief, osmotic laxatives like MiraLAX are ideal because they act within 24-48 hours without causing sudden urgency. If a faster effect is needed, stimulants may be an option, but prolonged use can lead to dependence.

For occasional constipation associated with changes in diet, travel, or stress, MiraLAX offers a comfortable and effective solution. However, if constipation persists for more than 7 days, a doctor should be consulted.

How to use and precautions

Recommended dose: Dissolve the contents of one sachet (17 g) in 120-240 ml of water, juice, or other beverage. Take once a day, preferably at the same time. The effect usually occurs within 24-48 hours.

Important precautions:

• Do not use for more than 7 consecutive days without medical supervision.
• It is not recommended in cases of intestinal obstruction, abdominal pain of unknown cause, or allergy to macrogol.
• Consult your pharmacist or doctor if you are pregnant, breastfeeding, or taking other medications.
• Keep out of reach of children.

Warning: Medication authorized by the AEMPS. Read the instructions for this medicine and consult your pharmacist. Do not exceed the recommended daily dose.

Frequently asked questions

How long does MiraLAX take to work? Usually between 24 and 48 hours. It is important to drink enough fluid and give the body time.

Is it safe for children? It can be used in children over 6 years of age under medical supervision. The dose must be adjusted according to weight.

Can I take it long-term? It is not indicated for prolonged use. If constipation is chronic, consult a doctor to rule out underlying causes.

Does it have side effects? In general, it is well tolerated. Occasionally, mild abdominal discomfort, nausea, or diarrhea may appear, which disappear when the dose is reduced.