PrescriptionGiant is a FREE prescription savings program that can save you up to 75% on your prescriptions with or without insurance!

Constulose (Generic Lactulose)

Actual product appearance may differ slightly.

Click the CARD below to print or take a screenshot on your mobile phone or tablet. There is no need to download another app!

If you would like to personalize your card enter your full name in the member name field below the card at this link and click the Update button.


Why is this medication prescribed?

Constulose is prescribed primarily for the treatment of constipation. It belongs to a class of medications known as laxatives, specifically osmotic laxatives. It works by drawing water into the colon, which softens the stool and helps to produce a bowel movement.

How should this medicine be used?

Here’s how Constulose should be used:

  • Dosage: The dosage of Constulose can vary depending on the severity of constipation and individual response. It is typically taken once daily, preferably at the same time each day.
  • Administration: Constulose is an oral medication and should be taken by mouth.
  • Mixing: It is usually mixed with at least 4 ounces (120 milliliters) of water or fruit juice before taking. This helps to dilute the medication and improve palatability.
  • Follow Instructions: Follow the instructions provided by your doctor or pharmacist carefully. Do not take more or less of it or take it more often than prescribed by your doctor.
  • Response Time: Constulose may take 24 to 48 hours to produce a bowel movement. It is important to be patient and consistent with taking it as prescribed.
  • Hydration: Ensure adequate fluid intake while using Constulose to help facilitate its effects.
  • Duration of Use: Constulose is typically used for short-term relief of constipation. Long-term use should be avoided without medical supervision.

Always consult with your healthcare provider regarding the appropriate dosage and use of Constulose based on your specific condition and medical history.

Other uses for this medicine

  • Hepatic Encephalopathy: Constulose can be used to treat hepatic encephalopathy, a condition where the liver is unable to properly remove toxins from the blood, leading to cognitive and neurological problems. Lactulose works by reducing ammonia levels in the blood, which helps alleviate symptoms of hepatic encephalopathy.
  • Prevention of Portal-Systemic Encephalopathy: Constulose may also be used to prevent the recurrence of portal-systemic encephalopathy in patients at risk.

What special precautions should I follow?

Special precautions to follow when using Constulose include:

  • Medical Conditions: Inform your healthcare provider about any medical conditions you have, especially diabetes or kidney problems, as these may affect how your body responds to Constulose.
  • Allergies: Let your doctor know if you have any allergies to lactulose or any other medications.
  • Pregnancy and Breastfeeding: Discuss with your doctor if you are pregnant, planning to become pregnant, or breastfeeding. The use of Constulose during pregnancy and breastfeeding should be determined by your healthcare provider.
  • Electrolyte Imbalance: Long-term or excessive use of Constulose can lead to electrolyte imbalances, particularly low potassium levels (hypokalemia). Your doctor may monitor your electrolyte levels periodically.
  • Diabetes: Constulose contains sugars and should be used with caution in patients with diabetes. Monitor blood sugar levels closely while using Constulose.
  • Other Medications: Inform your doctor about all other medications, vitamins, and supplements you are taking, as Constulose may interact with certain medications.
  • Laxative Dependency: Prolonged use or misuse of Constulose can lead to laxative dependency. Use it only as prescribed and do not exceed the recommended dose or duration of treatment.

Always follow your healthcare provider’s instructions and guidelines when using Constulose or any other medication to ensure safe and effective treatment.

What special dietary instructions should I follow?

  • Fluid Intake: Ensure adequate fluid intake while using Constulose to help facilitate its effects. Drinking enough water (at least 8 glasses per day unless instructed otherwise by your doctor) helps prevent dehydration and enhances the laxative effect of Constulose.
  • Dietary Fiber: Maintain a diet rich in fiber, such as fruits, vegetables, and whole grains, to promote regular bowel movements. Fiber helps bulk up stools and facilitate their passage through the intestines.
  • Avoid Certain Foods: Limit or avoid foods that can worsen constipation, such as processed foods, dairy products, and red meat.

What should I do if I forget a dose?

  • Take It As Soon As You Remember: If you miss a dose of Constulose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule.
  • Do Not Double Up: Do not take a double dose to make up for a missed one. Taking too much Constulose at once can increase the risk of side effects such as diarrhea and electrolyte imbalances.
  • Resume Regular Schedule: Resume your regular dosing schedule as prescribed by your doctor.

What side effects can this medication cause?

Constulose (lactulose) is generally well-tolerated, but like any medication, it can cause side effects in some individuals. Common side effects of Constulose include:

  • Gastrointestinal Effects: These are the most common side effects and may include:
    • Abdominal cramps
    • Bloating
    • Flatulence (gas)
    • Nausea
    • Diarrhea (especially with high doses)
  • Electrolyte Imbalances: Long-term or excessive use of Constulose can lead to electrolyte imbalances, particularly low potassium levels (hypokalemia).
  • Dehydration: Inadequate fluid intake while using Constulose can lead to dehydration, especially if diarrhea occurs.
  • Allergic Reactions: Though rare, allergic reactions to Constulose can occur. Seek medical attention immediately if you experience symptoms such as rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, or trouble breathing.
  • Other Possible Effects: These may include:
    • Vomiting
    • Headache
    • Electrolyte disturbances (especially hypokalemia)
    • Increased thirst
    • Muscle cramps

It’s important to follow your healthcare provider’s instructions carefully when taking Constulose to minimize the risk of side effects. If you experience any persistent or severe side effects, or if you have concerns about the medication, contact your healthcare provider promptly. They can provide guidance on how to manage side effects or adjust your treatment regimen if needed.

What should I know about storage and disposal of this medication?

Storage and Disposal:

  • Storage: Store Constulose at room temperature away from moisture, heat, and light. Avoid storing it in the bathroom. Keep it tightly closed in its original container.
  • Disposal: Dispose of Constulose according to local regulations or guidelines. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed.

In case of emergency/overdose

  • Symptoms of Overdose: Symptoms of Constulose overdose may include severe diarrhea, electrolyte disturbances (especially low potassium), dehydration, and abdominal discomfort.
  • Emergency Response: If you suspect an overdose or experience severe symptoms after taking Constulose, seek immediate medical attention or contact your local poison control center (in the US, you can call 1-800-222-1222).

What other information should I know?

  • Regular Monitoring: Your healthcare provider may periodically monitor your electrolyte levels (especially potassium) and overall health while you are taking Constulose, especially with prolonged use.
  • Medical Conditions: Inform your doctor about any medical conditions you have, especially diabetes, kidney problems, or electrolyte imbalances, as Constulose may affect these conditions.
  • Other Medications: Inform your healthcare provider about all other medications, vitamins, and supplements you are taking, as Constulose may interact with certain medications.
  • Lifestyle Changes: Maintain adequate fluid intake and a diet rich in fiber to help support the effects of Constulose and promote regular bowel movements.
  • Regular Follow-up: Follow up with your healthcare provider as recommended to evaluate the effectiveness of Constulose and monitor for any side effects or complications.
  • Avoid Misuse: Use Constulose only as prescribed by your healthcare provider. Avoid excessive or prolonged use without medical supervision to prevent dependency and potential complications.

Always consult your healthcare provider or pharmacist if you have any questions or concerns about Constulose, its use, side effects, or any other aspect of your treatment regimen.

Copyright © 2023 PrescriptionGiant.com