What side effects may I notice from receiving Omeprazole?

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 pain
-breathing problems
-fever or sore throat
-joint pain
-rash on cheeks or arms that gets worse in the sun
-redness, blistering, peeling, or loosening of the skin, including inside the mouth
-severe diarrhea
-signs and symptoms of kidney injury like trouble passing urine or change in the amount of urine
-signs and symptoms of low magnesium like muscle cramps; muscle pain; muscle weakness; tremors; seizures; or fast, irregular heartbeat
-stomach polyps
-unusual bleeding or bruising

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

-diarrhea
-dry mouth
-gas
-headache
-nausea
-stomach pain

This list may not describe all possible side effects for Omeprazole. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.