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Laxative, Hyperosmotic


Treats constipation by helping you have a bowel movement. Sometimes used to empty your bowel before surgery or other medical procedures.

Brand Names

PEG 3350 &
Mag-Ox 400
HalfLytely and Bisacodyl Tablet Bowel Prep Kit
Family Pharmacy Magnesium

When You Should Not Take The Medication

You should not use this medicine if you have had an allergic reaction to lactulose, polyethylene glycol, sorbitol, magnesium, or sodium phosphate. Make sure your doctor knows if you are allergic to any other laxative medicines. You should not use this medicine if you have a blockage in your intestines. Tell your doctor if you cannot have lactose, or if you have other digestive problems. Also tell your doctor if you have kidney disease or congestive heart failure (CHF).

How To Store And Dispose Of This Medicine

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

Keep all medicine away from children and never share your medicine with anyone.

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:
Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing.
Bleeding from your rectum.
Confusion, weakness, and muscle twitching.
Dry mouth, increased thirst, muscle cramps, severe nausea or vomiting.
Severe stomach pain, bloating, vomiting, or diarrhea.

If you notice these less serious side effects, talk with your doctor:
Mild stomach pain, cramps, gas, nausea, vomiting.

If you notice other side effects that you think are caused by this medicine, tell your doctor.