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Omeprazole Side Effects

Report Omeprazole Side Effects

If you experienced any harmful or unwanted effects of Omeprazole, please share your experience. This could help to raise awareness about Omeprazole side effects, identify uknown risks and inform health professionals and patients taking Omeprazole.

Examples: headache, dizziness


The most commonly reported Omeprazole side effects are:
Itching (87 reports)
Weight Gain (79 reports)
Anxiety (57 reports)
No Sex Drive (48 reports)
Leg Cramps (45 reports)
Diarrhea (41 reports)
Nausea (39 reports)
Heartbeat (26 reports)
Bloating (20 reports)

If you have experienced a side effect listed above, you can check a box to report it.


To view a complete list of submitted side effects, please follow the link Omeprazole side effects . You can also compare Omeprazole side effects or view FDA reports.

Omeprazole Side Effects reported to FDA

The following Omeprazole reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
The FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.


The appearance of Omeprazole on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has identified a causal relationship between the drug and the listed risk.

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Granulocytopenia
on Jan 16, 2014 Female from US , 47 years of age, was diagnosed with and was treated with Omeprazole Delayed-release Capsules, Usp. Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: granulocytopenia. Omeprazole Delayed-release Capsules, Usp dosage: N/A.
Associated medications used:
  • Clozapine
  • Levothyroxine Sodium
  • Olanzapine
  • Oxcarbazepine
  • Sertraline


Renal Failure Acute
Patient was taking Omeprazole. Patient felt the following Omeprazole side effects: renal failure acute on Feb 27, 2014 from DE Additional patient health information: Female , 70 years of age, weighting 141.1 lb, . Omeprazole dosage: N/A.
Multiple prescriptions taken:

Tubulointerstitial Nephritis
Adverse event was reported on Feb 26, 2014 by a Male taking Omeprazole (Dosage: N/A) was diagnosed with and. Location: US , 62 years of age, After Omeprazole was administered, patient encountered several Omeprazole side effects: tubulointerstitial nephritis. Patient was hospitalized.

Chest Pain, Dysphagia, Oesophageal Achalasia, Weight Decreased
on Feb 26, 2014 Female from US , 53 years of age, weighting 120.0 lb, was diagnosed with and was treated with Omeprazole. Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: chest pain, dysphagia, oesophageal achalasia, weight decreased. Omeprazole dosage: 1 Pill Once Daily Taken By Mouth.


Gynaecomastia
on Feb 20, 2014 Male from US , 77 years of age, was treated with Omeprazole. Patient felt the following Omeprazole side effects: gynaecomastia. Omeprazole dosage: N/A.

Myocardial Infarction, Angina Pectoris, Haemorrhage, Fall
Patient was taking Omeprazole. After Omeprazole was administered, patient encountered several Omeprazole side effects: myocardial infarction, angina pectoris, haemorrhage, fall on Feb 26, 2014 from BR Additional patient health information: Female , 77 years of age, weighting 107.4 lb, was diagnosed with and. Omeprazole dosage: N/A.
Multiple concurrent drugs taken: Patient was hospitalized.

Dilatation Intrahepatic Duct Acquired, Venoocclusive Liver Disease, Liver Function Test Abnormal, Hepatotoxicity
Adverse event was reported on Feb 26, 2014 by a Female taking Omeprazole (Dosage: N/A) . Location: GB , 19 years of age, Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: dilatation intrahepatic duct acquired, venoocclusive liver disease, liver function test abnormal, hepatotoxicity.
Associated medications used:
  • Allopurinol (300mg Per Day)
  • Caspofungin (70mg Per Day)
  • Chlorpheniramine Maleate (10mg Four Times Per Day)
  • Ciclosporin
  • Etopophos
  • Ketalar
  • Morphine
  • Norethisterone (5mg Three Times Per Day)


Abdominal Pain, Flatulence
on Feb 24, 2014 Female from US , 55 years of age, weighting 239.0 lb, was diagnosed with and was treated with Omeprazole. Patient felt the following Omeprazole side effects: abdominal pain, flatulence. Omeprazole dosage: 20mg/1 Pill Once Daily.

Nightmare
on Feb 26, 2014 Male from GB , 79 years of age, was diagnosed with and was treated with Omeprazole. After Omeprazole was administered, patient encountered several Omeprazole side effects: nightmare. Omeprazole dosage: N/A.
Multiple concurrent drugs taken:
  • Aspirin
  • Bendroflumethiazide
  • Losartan
  • Movicol
  • Paracetamol
  • Sertraline


Anaphylactic Reaction, Angioedema
Patient was taking Omeprazole. Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: anaphylactic reaction, angioedema on Feb 21, 2014 from US Additional patient health information: Male , 52 years of age, weighting 147.3 lb, was diagnosed with and. Omeprazole dosage: N/A.

Dizziness, Asthenia, Product Colour Issue
Adverse event was reported on Feb 21, 2014 by a Female taking Omeprazole (Dosage: 40 Mg Cap Mylan) was diagnosed with and. Location: US , 71 years of age, weighting 170.0 lb, Patient felt the following Omeprazole side effects: dizziness, asthenia, product colour issue.

Renal Failure Acute
on Feb 25, 2014 Female from GB , 70 years of age, weighting 141.1 lb, was treated with Omeprazole. After Omeprazole was administered, patient encountered several Omeprazole side effects: renal failure acute. Omeprazole dosage: N/A.
Multiple concurrent drugs taken:

Renal Failure Acute
on Feb 24, 2014 Female from GB , 70 years of age, weighting 141.0 lb, was treated with Omeprazole. Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: renal failure acute. Omeprazole dosage: N/A.
Associated medications used:

Jaundice
Patient was taking Omeprazole (omeprazole). Patient felt the following Omeprazole side effects: jaundice on Feb 19, 2014 from GB Additional patient health information: Female , 32 years of age, . Omeprazole (omeprazole) dosage: N/A.
Multiple prescriptions taken:

Rhabdomyolysis, Nausea, Vomiting, Fall
Adverse event was reported on Feb 18, 2014 by a Male taking Omeprazole (Dosage: N/A) . Location: IT , 72 years of age, After Omeprazole was administered, patient encountered several Omeprazole side effects: rhabdomyolysis, nausea, vomiting, fall.
Multiple concurrent drugs taken:

Product Quality Issue
on Feb 19, 2014 Female from US , 67 years of age, weighting 160.0 lb, was diagnosed with and was treated with Omeprazole. Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: product quality issue. Omeprazole dosage: 1 Pill Twice Daily Taken By Mouth.

Gastritis, Chronic Hepatitis C
on Feb 14, 2014 Female from US , 61 years of age, was treated with Omeprazole (omeprazole). Patient felt the following Omeprazole side effects: gastritis, chronic hepatitis c. Omeprazole (omeprazole) dosage: N/A.
Multiple prescriptions taken: Patient was hospitalized.

Urinary Tract Infection
Patient was taking Omeprazole. After Omeprazole was administered, patient encountered several Omeprazole side effects: urinary tract infection on Feb 12, 2014 from US Additional patient health information: Female , 65 years of age, weighting 135.0 lb, was diagnosed with and. Omeprazole dosage: N/A.

Haematemesis, Cough
Adverse event was reported on Feb 13, 2014 by a Female taking Omeprazole (Dosage: Daily) was diagnosed with and. Location: VI , 65 years of age, weighting 164.0 lb, Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: haematemesis, cough.

Dyspepsia, Gastrooesophageal Reflux Disease, Oesophageal Ulcer, Product Quality Issue
on Feb 10, 2014 Female from US , 54 years of age, weighting 136.0 lb, was treated with Omeprazole. Patient felt the following Omeprazole side effects: dyspepsia, gastrooesophageal reflux disease, oesophageal ulcer, product quality issue. Omeprazole dosage: 1 Capsule Daily Mouth?duration: Years.
Multiple prescriptions taken:
  • Pantoprazole
  • Losartam
  • Sertraline
  • Pravastatin
  • Fenofibrate
  • Hyoscyamine
  • Carafate


Discomfort, Dry Skin, Pain Of Skin, Skin Exfoliation
on Feb 13, 2014 Female from GB , 40 years of age, weighting 132.3 lb, was diagnosed with and was treated with Omeprazole. After Omeprazole was administered, patient encountered several Omeprazole side effects: discomfort, dry skin, pain of skin, skin exfoliation. Omeprazole dosage: N/A.
Multiple concurrent drugs taken:
  • Naproxen
  • Codeine
  • Gabapentin
  • Ibuprofen
  • Levothyroxine
  • Magnesium
  • Selenium
  • Tramadol


Breast Cancer, Lung Disorder, Fungal Skin Infection, Dyspnoea, Bronchitis, Productive Cough, Wheezing, Dysphonia, Autoimmune Thyroiditis
Patient was taking Omeprazole. Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: breast cancer, lung disorder, fungal skin infection, dyspnoea, bronchitis, productive cough, wheezing, dysphonia, autoimmune thyroiditis on Feb 11, 2014 from US Additional patient health information: Female , 76 years of age, weighting 173.9 lb, was diagnosed with and. Omeprazole dosage: N/A.
Associated medications used:
  • Anastrozole
  • Paxil
  • Paxil
  • Paxil
  • Paxil
  • Paxil
  • Paxil
  • Levothyroxine


Product Formulation Issue, Product Substitution Issue, Product Quality Issue, Dyspepsia, Gastrooesophageal Reflux Disease, Condition Aggravated
Adverse event was reported on Feb 10, 2014 by a Female taking Omeprazole (Dosage: N/A) was diagnosed with and. Location: US , 70 years of age, weighting 122.0 lb, Patient felt the following Omeprazole side effects: product formulation issue, product substitution issue, product quality issue, dyspepsia, gastrooesophageal reflux disease, condition aggravated.

Completed Suicide, Renal Failure Acute, Pericardial Effusion, Pleural Effusion, Overdose
on Feb 05, 2014 Male from US , 31 years of age, was treated with Omeprazole. After Omeprazole was administered, patient encountered several Omeprazole side effects: completed suicide, renal failure acute, pericardial effusion, pleural effusion, overdose. Omeprazole dosage: N/A.
Multiple concurrent drugs taken: Patient was hospitalized.

Completed Suicide, Toxicity To Various Agents
on Feb 05, 2014 Male from US , 61 years of age, was treated with Omeprazole. Directly after, patient experienced the unwanted or unexpected Omeprazole side effects: completed suicide, toxicity to various agents. Omeprazole dosage: Df.
Associated medications used:
  • Insulin
  • Bumetanide (Df)
  • Cardiac Glycosides (Df)
  • Iron (Df)
  • Folic Acid (Df)


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Record and Track Your Side Effects

It is very important to keep track of all side effects and discuss them with your doctor. If you think you may have a medical emergency, call your doctor or 911 immediately.

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Most drugs have a large list of nonsevere or mild adverse effects which do not rule out continued usage. These effects depend on individual sensitivity, and can include nausea, dizziness, diarrhea, malaise, vomiting, headache, dermatitis, dry mouth, etc. Check commonly reported side effects . These can be considered a form of pseudo-allergic reaction, as not all users experience these effects; many users experience none at all.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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JustAnswer.com

Safety Alerts, Active Ingredients, Usage Information

Alternative OMEPRAZOLE Names:OMEPRAZOL

Active Ingredient: OMEPRAZOL

More About Omeprazole

Side Effects reported to FDA: 5861

Omeprazole safety alerts: 2009 2007

Reported deaths: 416

Reported hospitalizations: 2383

Clopidogrel (marketed as Plavix) and Omeprazole (marketed as Prilosec) - Drug Interaction

Audience: Cardiovascular healthcare professionals, pharmacists

[Posted 11/17/2009] FDA notified healthcare professionals of new safety information concerning an interaction between clopidogrel (Plavix), an anti-clotting medication, and omeprazole (Prilosec/Prilosec OTC), a proton pump inhibitor (PPI) used to reduce stomach acid.  New data show that when clopidogrel and omeprazole are taken together, the effectiveness of clopidogrel is reduced. Patients at risk for heart attacks or strokes who use clopidogrel to prevent blood clots will not get the full effect of this medicine if they are also taking omeprazole. Separating the dose of clopidogrel and omeprazole in time will not reduce this drug interaction.

Other drugs that are expected to have a similar effect and should be avoided in combination with clopidogrel include: cimetidine, fluconazole, ketoconazole, voriconazole, etravirine, felbamate, fluoxetine, fluvoxamine, and ticlopidine. 

Recommendations for healthcare professionals are provided in the "Information for Healthcare Professionals" sheet.

[11/17/2009 - Information for Healthcare Professionals - FDA]
[11/17/2009 - Public Health Advisory - FDA]
[11/17/2009 - Follow-Up to January 2009 Early Communication - FDA]

Previous MedWatch Alert:

[01/26/2009] Clopidogrel bisulfate (marketed as Plavix) Early Communication 

Latest Omeprazole clinical trials