Constilac (Lactulose)

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What is Constilac (Lactulose) prescribed for?


Constipation is when your bowel movements are tough or when they happen less often than normal. And almost everyone has gone through this situation in the past. And while it’s not usually serious, it is nice to have your body back on track.


The normal length of time between bowel movements varies from person to person. While some have them three times a day, others may have them just a few times a week. However, going longer than three or more days without a bowel movement is too long. After this point, it will be much more difficult to pass.


This medication is a laxative when used in treatments for constipation. It may help to increase the amount of bowel movements per day, and increases the number of days you have a bowel movement as well. How this medication works is by increasing the stool water content and thus softening the stool. Overall it is a man-mad sugar solution.


This medication comes in the singular dose, which is 10g/15mL. Remember your dose is based on your medical background and your overall response to the treatment. If your doctor or pharmacist has given you some information in the form of a pamphlet, take the time to read up on this drug, and if you have any questions or concerns regarding this medication, please consult your doctor.

This medication is to be taken by mouth, usually once daily, or as directed by your doctor. Just remember that this dosage is based on your medical condition and your response to the treatment. Use the medicine daily to achieve the greatest benefit.  To improve the taste of the, you may mix it into a fruit juice, water, millk, or a soft desert.

It may take up to 48 hours before you have a bowel movement. Inform you doctor if your condition persists or worsens.

Before taking this medication, inform your doctor if you are allergic to Lactulose; or if you have any other allergies in general.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: a low galactose diet (e.g., a diet that includes few or no milk products), certain other bowel problem (bowel obstruction).

Before using this medication, tell your doctor or pharmacist your medical history, especially of: diabetes.

Do not take any other laxatives while using this medication. Frequent use of multiply laxatives may cause severe case of dehydration.

Gas, bloating, burping, stomach rumbling/pain, nausea, and cramps may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

Tell your doctor right away if any of these unlikely but serious side effects occur: diarrhea, vomiting, muscle cramps/weakness, irregular heartbeat, mental/mood changes, seizures, severe or persistent stomach/abdominal pain, bloody stools, rectal bleeding.

A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

What happens if I suddenly stop taking this medication?

There may be a relapse in symptoms as well as side effects. You should speak your doctor before stop taking this medication.


What is the best dosage to take?

The diagnosis with your doctor will be able to determine the best dosage for your treatment. Work with your doctor closely for dosage and dosing schedules.


What happens if I miss a dose?

You should take the missed dose as soon you realize you have forgotten. If the forgotten dose is closer to your next scheduled dose, take the next schedule dose to avoid overlapping in dose.


What is the best way to store this medication?

This medication is stored at room temperature, and should be kept away from children and pets. Do not throw away this medication in the wastebasket. If you are uncertain how to dispose of this medication speak with your pharmacist for help in safely disposing of this medication.

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