What are the possible side effects of PROTONIX?

PROTONIX can cause serious side effects, including:

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See "What is the most important information I should know about PROTONIX?"

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Low vitamin B-12 levels in your body can happen in people who have taken PROTONIX for a long time (more than 3 years). Tell your doctor if you have symptoms of low vitamin B-12 levels, including shortness of breath, lightheadedness, irregular heartbeat, muscle weakness, pale skin, feeling tired, mood changes, and tingling or numbness in the arms and legs.

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Stomach growths (fundic gland polyps). People who take PPI medicines for a long time have an increased risk of developing a certain type of stomach growths called fundic gland polyps, especially after taking PPI medicines for more than 1 year.

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Severe skin reactions. PROTONIX can cause rare but severe skin reactions that may affect any part of your body. These serious skin reactions may need to be treated in a hospital and may be life threatening:

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Skin rash which may have blistering, peeling or bleeding on any part of your skin (including your lips, eyes, mouth, nose, genitals, hands or feet).

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You may also have fever, chills, body aches, shortness of breath, or enlarged lymph nodes.

Stop taking PROTONIX and call your doctor right away. These symptoms may be the first sign of a severe skin reaction.
The most common side effects of PROTONIX in adults include: headache, diarrhea, nausea, stomach-area (abdominal) pain, vomiting, gas, dizziness, and joint pain.
The most common side effects of PROTONIX in children include: upper respiratory infection, headache, fever, diarrhea, vomiting, rash, and stomach-area (abdominal) pain.
These are not all the possible side effects of PROTONIX. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.