Is MiraLAX FSA/HSA Eligible?

Yes, MiraLAX is eligible for Flexible Spending Account (FSA) and Health Savings Account (HSA), assuming you have enough funds in your yearly plan.

Why Is MiraLAX FSA/HSA Eligible?

MiraLAX is FSA/HSA eligible because it is classified as a medical treatment for occasional constipation, a condition that affects digestive health. The active ingredient in MiraLAX, polyethylene glycol 3350, works by drawing water into the colon, softening stools, and making bowel movements easier. This specific medical function aligns with the requirements set by the IRS for FSA/HSA reimbursement.


Additionally, under the CARES Act of 2020, over-the-counter (OTC) medications like MiraLAX no longer require a prescription for FSA/HSA eligibility. This regulatory update makes MiraLAX a convenient and reimbursable option for individuals managing constipation or related conditions without needing prior authorization from a healthcare provider.

How to Purchase MiraLAX With An FSA/HSA

Browse FSA/HSA eligible MiraLAX & laxative products on buyFSA.com or the buyFSA app. After deciding which product to purchase, add the items to your cart by clicking the shopping cart icon below each product image. Once you have completed your product selection/s, click on the shopping bag icon at the top right of your screen to proceed to checkout. On the checkout page, check that your order is correct, then click the pay now (FSA/HSA) button.


Alternatively, you may wish to make an out of pocket payment using your credit card. Complete the checkout form with your regular credit card details. You can now use the payment receipt to request reimbursement. To ensure your request succeeds, ensure your receipt includes the following:

  • Name of the provider

  • Date of purchase/service rendered (note that for services, they must be rendered within the plan year for FSAs)

  • Description of items/services rendered

  • Itemized list of products purchased with UPCs (if purchasing items at a retailer that doesn’t accept FSA cards or if using a regular credit card)

  • Total amount of purchase

What Other Fiber Supplements Are FSA/HSA Eligible?

In addition to MiraLAX, certain fiber supplements are FSA/HSA eligible if they are marketed for treating medical conditions such as constipation or bowel irregularity. Examples of eligible fiber supplements include:

  • Metamucil: A bulk-forming fiber laxative that helps regulate bowel movements and maintain gut health.

  • Benefiber: A soluble fiber supplement designed to support digestive health and alleviate constipation.

  • FiberCon: A fiber laxative that provides relief from irregularity by promoting natural movement in the digestive system.

To qualify, these products must have a primary purpose of addressing a specific medical condition. Supplements marketed for general wellness, weight management, or other non-medical purposes are not eligible unless accompanied by a letter of medical necessity from a healthcare provider.

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