Lansoprazole (Oral Route)

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Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

• Diarrhea
• Skin rash or itching

• Abdominal or stomach pain
• Increased or decreased appetite
• Joint pain
• Nausea
• Vomiting

• Anxiety
• Cold or flu-like symptoms
• Constipation
• Increased cough
• Mental depression
• Muscle pain
• Rectal bleeding
• Unusual bleeding or bruising

• Abdominal or stomach tenderness
• Back, leg, or stomach pains
• Bleeding gums
• Blistering, peeling, or loosening of the skin
• Bloating
• Bloody, black, or tarry stools
• Change in mental status
• Chest pain
• Chills
• Clay colored stools
• Cough or hoarseness
• Dark or bloody urine
• Difficulty with swallowing
• Drowsiness
• Fast heartbeat
• Fever
• General body swelling
• High fever
• Hives
• Indigestion
• Loss of appetite
• Lower back or side pain
• Mood or mental changes
• Muscle spasms (tetany) or twitching seizures
• Nosebleeds
• Painful or difficult urination
• Pains in the stomach, side, or abdomen, possibly radiating to the back
• Pale skin
• Pinpoint red spots on the skin
• Puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
• Red, irritated eyes
• Red skin lesions, often with a purple center
• Seizures
• Shortness of breath
• Sore throat
• Sores, ulcers, or white spots on the lips or in the mouth
• Swelling of the feet or lower legs
• Swollen or painful glands
• Tightness in the chest
• Trembling
• Unusual tiredness or weakness
• Wheezing
• Yellowing of the eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

• Dizziness
• Headache

• Bleeding, blistering, burning, coldness, or discoloration of the skin
• Mild nausea

• Acid or sour stomach
• Bad, unusual or unpleasant (after) taste
• Belching
• Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
• Change in taste
• Feeling faint, dizzy, or lightheaded
• Feeling of heat or warmth
• Flushing or redness of the skin, especially on the face and neck
• Heartburn
• Indigestion
• Mild diarrhea
• Mild headache
• Mild vomiting
• Stomach discomfort, upset, or pain
• Sweating

• Decrease in passing urine (dribbling)
• Decrease in the frequency of urination
• Decrease in urine volume
• Difficulty with speaking

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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