Omeprazole OTC Side Effects
What should I watch for?
It can take several days before your heartburn gets better. Check with your doctor or health care professional if your condition does not start to get better, or if it gets worse.
Do not treat yourself for heartburn with this medicine for more than 14 days in a row. You should only use this medicine for a 2-week treatment period once every 4 months. If your symptoms return shortly after your therapy is complete, or within the 4 month time frame, call your doctor or health care professional.
This medicine may cause a decrease in vitamin B12. You should make sure that you get enough vitamin B12 while you are taking this medicine. Discuss the foods you eat and the vitamins you take with your health care professional.
Common and Rare 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:
Back, leg, or stomach pain
bleeding or crusting sores on the lips
bloody or cloudy urine
continuing ulcers or sores in the mouth
difficult, burning, or painful urination
frequent urge to urinate
general feeling of discomfort or illness
itching, skin rash
loss of appetite
muscle aches or cramps
red or irritated eyes
redness, tenderness, itching, burning, or peeling of the skin
sores, ulcers, or white spots on the lips, in the mouth, or on the genitals
unusual bleeding or bruising
unusual tiredness or weakness
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
dryness of the mouth
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:
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.