Understanding Omeprazole Side Effects & Safety

Omeprazole is a widely prescribed proton pump inhibitor that effectively treats acid reflux and heartburn by reducing stomach acid production. Whilst generally well-tolerated, like all medications, omeprazole can cause side effects in some patients. Understanding these potential effects helps you make informed decisions about your acid reflux treatment. EverydayMeds offers convenient online consultations for omeprazole prescriptions with comprehensive guidance from qualified pharmacists.

  • Common side effects include headache, nausea, and digestive changes
  • Long-term use may affect nutrient absorption and bone health
  • Rare but serious effects require immediate medical attention
  • Most side effects resolve when stopping treatment or adjusting dosage
Start your free consultation

Takes less than 2 minutes to complete, 100% online

usp of our everydaymeds for Acid Reflux
usp of our everydaymeds for Acid Reflux

Available Treatments

Choose from a wide range of clinically-proven, safe, and effective treatments for Acid Reflux & Heartburn Treatment.

Frame 1321316359 (4).jpg__PID:471262e0-b5c1-4a81-8645-798924de6af3

Omeprazole 20mg

From £12.99

Learn More
Frame 1321316360 (4).png__PID:edbd79c0-7975-453d-b880-d8404a209232

Lansoprazole 15mg Capsules

From £5.99

Learn More
Frame 1321316361 (6).png__PID:dc692acd-7ef0-4d11-94cc-c9625acc0a5d

Famotidine Tablets

From £8.49

Learn More
Frame 1321316362 (3).png__PID:c3206fc2-75dd-4646-97ef-62f7d86d8e74

Lansoprazole 15mg Orodispersible Tablets

From £8.49

Learn More
Frame 1321316363 (3).png__PID:87837d9a-6a6c-4bd3-8dc1-00bdbeb52460

Losec MUPS 20mg Tablets

From £29.99

Learn More
Frame 1321316387 (1).png__PID:8814b58d-07c6-4357-8cab-3bf394b7bd4d

Pantoprazole

From £5.99

Learn More
Frame 1321316388 (1).png__PID:7ee9715c-b838-4f97-aae7-92a4bf86c0f8

Rabeprazole

From £19.99

Learn More
Frame 1321316389 (1).png__PID:a28e97f3-0d1c-4846-9dd7-ad8e0eddbe71

Esomeprazole

From £16.99

Learn More

Complete Guide to Omeprazole Side Effects

Common Side Effects of Omeprazole

Most people who take omeprazole experience few or no side effects. When they do occur, common side effects typically affect up to 1 in 10 people and may include headache, dizziness, nausea, vomiting, stomach pain, diarrhoea, constipation, and wind. These effects are usually mild and often improve as your body adjusts to the medication. If you experience persistent headaches whilst taking omeprazole, this is amongst the most frequently reported side effects and may be related to changes in stomach acid levels.

Long-Term Use Considerations

Extended use of omeprazole, particularly for more than 12 months, may lead to additional considerations. Reduced stomach acid can affect the absorption of certain nutrients including vitamin B12, magnesium, and iron. Some studies suggest a potential increased risk of bone fractures with prolonged PPI use, particularly in older adults or those taking high doses. Your prescriber will regularly review long-term omeprazole therapy to ensure the benefits continue to outweigh potential risks.

Rare but Serious Side Effects

Although uncommon, some serious side effects require immediate medical attention. These include severe skin reactions such as Stevens-Johnson syndrome, kidney problems, severe diarrhoea that may indicate Clostridioides difficile infection, and symptoms of low magnesium including muscle cramps, irregular heartbeat, or seizures. Liver problems, whilst rare, can manifest as yellowing of skin or eyes, dark urine, or severe fatigue.

Managing and Minimising Side Effects

If you experience side effects from omeprazole, discuss with your prescriber before stopping treatment abruptly. They may adjust your dose, suggest taking the medication at a different time, or recommend an alternative PPI such as lansoprazole or pantoprazole. At EverydayMeds, our online consultation process allows you to report any side effects and receive personalised advice from qualified healthcare professionals.

Getting Omeprazole Through EverydayMeds

EverydayMeds offers convenient access to omeprazole 20mg capsules and branded Losec MUPS through our secure online consultation service. Our qualified prescribers assess your symptoms, medical history, and current medications to ensure omeprazole is suitable for you. We also stock alternative acid reflux treatments including lansoprazole, pantoprazole, and esomeprazole if omeprazole isn't appropriate for your needs.

How it
Works?

Group 469326.png__PID:d1d71928-56cc-4f79-bdc7-0a45d0bc6b99
Background (1).png__PID:62282697-4455-4e74-a869-705c14f98b30
Background (3).png__PID:72aeaaf6-bb5b-4dd5-8914-6efdf80a1555

Start your assessment for Acid Reflux & Heartburn

Start your journey to better health today.

List.svg__PID:b4a5b990-cf62-48e4-ba8f-0a8bffce6cc6

Start your journey to better health today.

Once you complete a short online assessment, you’ll be able to choose your preferred treatment and quantity from a list of safe, medically approved options tailored to you.

Start My Assessment

Returning customer?

Log in to Your Account

Frequently asked questions