lactulose (generic name)

Generlac (brand name)

It helps to treat chronic constipation
(LAK tyoo lose)
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What is this medicine?

LACTULOSE (LAK tyoo lose) powder is a laxative derived from lactose. It helps to treat chronic constipation.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • need a galactose-free diet
  • scheduled for surgery
  • an unusual or allergic reaction to lactulose, other sugars, medicines, foods, dyes or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

Dissolve contents of the packet in half a glass (4 ounces) of water. Shake well before using. Follow the directions on the prescription label. Take your doses at regular intervals. Do not take your medicine more often than directed.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

  • antacids
  • neomycin
  • other laxatives

What should I watch for while using this medicine?

This medicine may not produce any result for 24 to 48 hours. Do not take this medicine for longer than directed by your doctor or health care professional.

Drink plenty of water with each dose of this medicine.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • diarrhea

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • belching, flatulence
  • nausea or vomiting
  • stomach pain or discomfort

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Last Updated: June 23, 2009
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