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Kristalose (powder lactulose) Rx

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Kristalose: Lactulose Powder for Cats

Constipation is a fairly common problem in cats. If your cat suffers from constipation, talk to your veterinarian about Kristalose powder. This effective medication balances your cat’s system and is easy to use.

  • Eases constipation in cats
  • Can be used long term
  • Palatable powder formula

Cats suffer from constipation for a number of reasons including old age, diabetes, and kidney disease. It’s also a side effect of many other medications your cat may be taking.  Your veterinary may prescribe Kristalose to help ease your cat’s discomfort. Kristalose is powdered lactulose, a medication that draws water into the colon which helps soften the stool and creates a laxative effect. The palatable formula makes Kristalose easy to administer -- just sprinkle the recommended dosage on your cat’s food.


What you should know about Kristalose powder:

  • Talk to your veterinarian before using this product.
  • Follow dosing directions exactly - don’t give your pet more medication than directed and don’t skip doses.
  • Read the label carefully for information about storage, possible side effects, and drug interactions.


For additional information about Kristalose powder, click the “More Information” and “Package Insert” tabs above. 

You can find a Client Information Sheet which provides a summary of information about Kristalose (lactulose) for Pets by following the link below:

Lactulose Client Information Sheet*


If you have questions or concerns about Kirstalose (lactulose), or conditions related to its use, contact your pet's veterinarian or pharmacist.


*This link opens in a new window.

You can find a human-labeled package insert which provides more detailed information on Kristalose's indications, forms of administration, and side effects along with other clinical information by following the link below.

This information is written for product use in people, but may be helpful to you when giving the Kristalose (lactulose powder) to your pet.

Kristalose is sold as a FDA approved generic drug. Brand varies from order to order and variation to variation. The provided link is directed to the brand available at the time of this publication. VetRxDirect is unable to guarantee which brand will be available at the time of order shipment.

Kristalose Package Insert


Kristalose's package insert does not take the place of instructions from your veterinarian. Talk to your pet's veterinarian or pharmacist if you do not understand the information provided in this document or if you have any questions about Kristalose powder for cats with constipation.


*This link opens in a new window.