Can You Take Protonix With Miralax?
In our latest question and answer, the pharmacist discusses whether or not Protonix (pantoprazole) can be taken with Miralax.
I take Miralax daily, first thing in the morning. I was prescribed Protonix and I'm supposed to take it 30-60 minutes before breakfast. Can I take Miralax before Protonix, at the same time, or should I take Protonix first? Thank you.
Nov 19, 2022- There is no known interaction between Miralax and Protonix, but it's generally recommended to separate these medications by a couple of hours to avoid any potential absorption issues.
- Take Protonix on an empty stomach 30-60 minutes before meals, and then take Miralax at least 30-60 minutes later, such as with breakfast.
- Miralax works by drawing water into the stool to soften it and increase bowel urgency without causing dependency on the medication.
Answer
While there is no specific interaction between Miralax (polyethylene glycol) and Protonix (pantoprazole), it's generally a good idea to separate the administration of most drugs from laxative products.
Laxatives can sometimes decrease the absorption of other drugs simply based on how they work, which oftentimes includes speeding up how fast the contents of the gastrointestinal tract move, although Miralax is thought to only work by drawing water into the stool.
I couldn't find any documentation or studies that have shown that Miralax decreases the absorption of Protonix in particular, but again, a general rule of thumb is to not take other medications at the same time that you take laxatives.
Additionally, for optimal absorption, proton pump inhibitors, like Protonix, are recommended to be taken on an empty stomach, 30-60 minutes before meals. Therefore, if you are going to take Protonix and Miralax on the same day, I would recommend taking Protonix 30-60 minutes before dosing with Miralax.
How Does Miralax Work?
Miralax contains polyethylene glycol. It is an osmotic laxative that is essentially completely unabsorbed as it moves through the gastrointestinal tract.
Osmotic laxatives like Miralax work by drawing water into the gastrointestinal tract, and also help the stool retain water. This results in softened stool consistency and increased urgency to go to the bathroom.
One of the benefits of Miralax is that, unlike some other laxatives, it isn't thought to cause dependency (i.e., tachyphylaxis).
Miralax has very few reported drug interactions, but as mentioned, there is a chance it could affect the absorption of some drugs if taken at the same time as them. To avoid this potential interaction, you can separate the administration of Miralax by a couple of hours.
Final Words
In your question, it sounds like you will be taking Miralax and Protonix on a daily basis.
You have multiple ways to do this to avoid any sort of absorption issue, but the easiest way may be to take your Protonix first, on an empty stomach, and take your Miralax 30-60 minutes later with breakfast.
I hope this answers your question!
NDC Codes for the Medications in This Answer
Every package, labeler and price for each medication in the FDA's National Drug Code directory.
Glossary — Terms in This Answer
- Polyethylene glycol
- A chemical compound used in laxatives that draws water into the intestines to soften stool.
- Proton pump inhibitor
- A type of medication that reduces stomach acid by blocking acid-producing pumps in the stomach lining.
- Osmotic laxative
- A laxative that works by drawing water into the intestines to soften stool and increase bowel movements.
- Absorption
- The process by which a medication passes through the digestive system into the bloodstream to take effect.
- Gastrointestinal tract
- The system of organs in the body responsible for digesting food, including the stomach and intestines.
- Tachyphylaxis
- A condition where the body becomes less responsive to a medication over time, requiring higher doses for the same effect.
- Drug interaction
- An unwanted reaction that occurs when two or more medications are taken together and affect how each other works.
Dr. Brian Staiger, PharmD
Doctor of Pharmacy, board certified clinical pharmacist (BCPS), American Herbalist Guild, Medication Therapy Management certified
Brian Staiger, PharmD, BCPS, is a licensed pharmacist with more than 13 years of experience across retail pharmacy, clinical pharmacy, medication safety, pharmacy program development, and healthcare administration. He is the founder of HelloPharmacist.com, where he helps patients...
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