July 23, 2014
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Drug Factsheets

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ratio-Lactulose

(lactulose)

DIN (Drug Identification Number)

00854409 RATIO-LACTULOSE 667MG/ML ORAL LIQUID

How does ratio-Lactulose work? What will it do for me?

Lactulose is an osmotic laxative. It is used for the relief of constipation, including chronic constipation, as directed by your doctor. It works over a period of about 24 to 48 hours. The liquid reaches your intestines virtually unchanged. Once there, the bacteria in your bowel split lactulose into its active parts. The active parts increase the action of your bowel and keep water in your bowel so that stools are moved through and are easier to pass.

Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. As well, some forms of this medication may not be used for all of the conditions discussed here. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.

Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.

How should I use ratio-Lactulose?

Lactulose is available in a liquid form. The dose varies according to the product being used, but it is usually taken once or twice a day at the same time each day. Some medications should be taken at least 2 hours after lactulose.

Remember that lactulose takes 24 to 48 hours for results in most cases. This product should not be used if it has only been a day or two since your last bowel movement. Laxatives should not be used for more than one week unless your doctor advises otherwise. If you are still bothered by constipation after one week of using this product, call your doctor.

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

It is important to take this medication exactly as suggested by your doctor or pharmacist. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Store this medication at room temperature, protect it from moisture, and keep it out of the reach of children.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.





What form(s) does ratio-Lactulose come in?

Each mL of orange, clear sirupy liquid contains: lactulose 667 mg. Nonmedicinal ingredients: FD&C Yellow No. 6 and purified water.

Who should NOT take ratio-Lactulose?

Do not take lactulose if you:

  • are allergic to lactulose or any ingredients of the medication
  • require a low galactose diet

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