Does miralax come in capsules?

Miralax, also known as Polyethylene glycol (PEG), is a laxative solution used to treat constipation and intestinal blockages. Many people wonder if Miralax is available in capsule form. The answer is no, Miralax is not available in capsules.

Miralax comes in a powder form and is mixed with water or other liquids before ingestion. The powder is tasteless and can be mixed with any liquid or food. It is known for being a gentle and effective laxative as it pulls water into the colon to soften the stool and make bowel movements easier.

Why is Miralax not available in Capsules?

The compound in Miralax, Polyethylene glycol, is a water-soluble polymer that is not readily absorbed by the body. Since it is not absorbed, there is no need for a capsule or any other delivery method other than mixing the powder with water or other liquid. Capsules are typically used for medications that need to reach a specific part of the body, like the stomach or intestines, but Miralax is designed to work throughout the colon.

How to Take Miralax?

Mixing Instructions

Miralax comes with a measuring cap that makes it easy to measure the correct amount of the powder. To prepare the solution, mix the measured amount of Miralax powder with 8 oz of any beverage, including water, juice, soda or coffee. The beverage should be at room temperature or cooler. Mix well until the powder is completely dissolved. The solution can be consumed immediately or stored in a covered container at room temperature for up to 24 hours.

Dosage instructions

The dosage of Miralax varies depending on the individual and their condition of constipation. The recommended dose for most adults is one capful of the Miralax powder, which is about 17g, once daily. Depending on the severity of constipation, the dosage may be increased to twice a day. It is important to consult a healthcare provider to determine the appropriate dose and usage instructions for specific conditions.

Who Should Use Miralax?

Miralax is safe for use in adults and children over the age of six months. It is typically recommended to people who suffer from occasional constipation, irregular bowel movements, or situations that lead to poor bowel habits, such as travel or pregnancy. It can also be used for conditions such as Irritable bowel syndrome (IBS) and colonoscopy preparation.

Miralax Side Effects

Miralax is a safe and well-tolerated laxative for most people; however, like any medication, there is a potential for side effects. The most common side effects of Miralax are stomach cramps, gas, bloating, and diarrhea. These side effects tend to be mild and should go away after the first few days of use. If these side effects persist or worsen, talk to your healthcare provider.

Alternatives to Miralax

If Miralax is not the right choice for you or you are looking for other options, there are several alternatives on the market. These include:

  • Fiber supplements, such as Metamucil, Citrucel, and FiberCon
  • Osmotic Laxatives, such as Milk of Magnesia, Polyethylene glycol, and Sorbitol
  • Stimulant Laxatives, such as Senna, Bisacodyl, and Castor Oil
  • Stool softeners, such as Docusate Sodium and Colace


Miralax is a widely-used laxative that is very effective and gentle, despite not being available in capsule form. It is important to consult with your healthcare provider to determine the appropriate dosage for your condition. If you experience any negative side effects, contact your healthcare provider as soon as possible.


Here are some of the most common questions related to “Does Miralax come in capsules?”:

  • Can I mix Miralax with carbonated beverages?
    It is not recommended to mix Miralax with carbonated beverages as they may cause bloating and gas.
  • How long does it take for Miralax to work?
    Miralax may take 1-3 days to work, depending on the individual and their condition.
  • Can Miralax cause dehydration?
    Miralax can cause dehydration if not enough fluids are taken with the medication. It is essential to drink plenty of water or other liquids while taking Miralax.