lansoprazole (generic name)

It prevents the production of acid in the stomach
(lan SOE pra zole)
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What is this medicine?

LANSOPRAZOLE (lan SOE pra zole) prevents the production of acid in the stomach. It is used to treat gastroesophageal reflux disease (GERD), ulcers, certain bacteria in the stomach, inflammation of the esophagus, and Zollinger-Ellison Syndrome. It can also be used to prevent and treat ulcers in patients taking medicines called non-steroidal anti-inflammatory drugs (NSAIDs).

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

They need to know if you have any of these conditions:
  • liver disease
  • low levels of magnesium in the blood
  • phenylketonuria
  • an unusual or allergic reaction to lansoprazole, medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

Take this medicine by mouth. Follow the directions on the prescription label. Place the tablet on your tongue and allow it to dissolve in your mouth. The tablet will dissolve rapidly, usually in less than one minute. Swallow the medicine once completely dissolved. Do not chew, break, or cut the tablets. 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?

Do not take this medicine with any of the following medications:
  • atazanavir
  • nelfinavir

This medicine may also interact with the following medications:

  • ampicillin
  • delavirdine
  • digoxin
  • diuretics
  • iron salts
  • itraconazole, ketoconazole, voriconazole, or other prescription medicines for fungus or yeast infections
  • sucralfate
  • theophylline
  • warfarin

What should I watch for while using this medicine?

It can take several days before your stomach pains get better. Check with your doctor or health care professional if your condition does not start to get better, or if it gets worse.

You may need blood work done while you are taking this medicine.

If you have phenylketonuria, you should avoid taking this medicine which contains phenylalanine. The capsules and syrup forms of this medicine are preferred because they do not contain phenylalanine.

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:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • bone, muscle or joint pain
  • breathing problems
  • chest pain or chest tightness
  • dark yellow or brown urine
  • dizziness
  • fast, irregular heartbeat
  • feeling faint or lightheaded
  • fever or sore throat
  • muscle spasm
  • palpitations
  • redness, blistering, peeling or loosening of the skin, including inside the mouth
  • seizures
  • tremors
  • unusual bleeding or bruising
  • unusually weak or tired
  • yellowing of the eyes or skin

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

  • constipation
  • diarrhea
  • dry mouth
  • headache
  • nausea

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). Protect from moisture. 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: March 08, 2011
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