Acid reflux treatment guide
Omeprazole and Lansoprazole are both proton pump inhibitors used to reduce stomach acid. This guide compares how they work, how quickly they may help, key safety points, side effects, UK online buying checks and when to seek medical advice.
Omeprazole and Lansoprazole are similar medicines. Both reduce stomach acid and may be used for acid reflux, heartburn and indigestion linked to excess acid. For many people, the best choice depends on previous response, dose, other medicines, side effects, medical history and the clinical assessment completed before treatment.
At The Care Pharmacy, current acid reflux options include Omeprazole from £14.99 to £31.99, Lansoprazole from £14.99 to £15.99 and Esomeprazole GR 20mg at £14.99. Prices can change, so always check the product page before ordering.
Omeprazole, Lansoprazole and Esomeprazole are proton pump inhibitors, often shortened to PPIs.
They reduce acid production in the stomach, which can help heartburn and reflux symptoms settle.
Prescription treatment requires a clinical assessment to check suitability, risks and interactions.
Trouble swallowing, vomiting blood, black stools, unexplained weight loss or severe chest pain need urgent advice.
Acid reflux happens when stomach acid travels back up towards the throat or oesophagus. It can cause a burning feeling in the chest, often called heartburn, as well as a sour taste, burping, bloating, nausea, hoarseness or a cough that keeps returning. The NHS explains that frequent or persistent symptoms can sometimes be described as gastro-oesophageal reflux disease, or GORD.
Occasional heartburn after a heavy meal may settle with lifestyle changes or over-the-counter options. Recurrent symptoms, symptoms lasting several weeks, symptoms that affect sleep, or symptoms that return after stopping treatment should be reviewed by a healthcare professional. Acid reflux can overlap with indigestion, stomach ulcers, medicine irritation, infection and other conditions, so it is important not to self-diagnose persistent symptoms.
You can read general NHS information on heartburn and reflux at NHS heartburn and acid reflux, and NICE guidance for adults with reflux and dyspepsia at NICE CG184 recommendations.
Treatment may be considered when lifestyle measures alone are not enough, symptoms are frequent, or a clinician decides that reducing stomach acid is appropriate. Proton pump inhibitors such as Omeprazole, Lansoprazole and Esomeprazole are commonly used because they reduce acid production at source rather than simply neutralising acid after it has already been produced.
Treatment is not automatically suitable for everyone. A pharmacist or prescriber will usually want to know how long symptoms have been present, whether symptoms have changed recently, which medicines you take, whether you are pregnant or breastfeeding, whether you have liver or kidney problems, and whether there are any warning symptoms that need further investigation.
Acid reflux medicines work best as part of a wider plan. Smaller meals, avoiding late-night eating, reducing alcohol, stopping smoking, losing weight if clinically appropriate, raising the head of the bed and identifying personal food triggers may all help some people. These steps are not a substitute for medical advice if symptoms are severe, persistent or unusual.
The right option depends on symptom pattern, severity, previous response and suitability. The Care Pharmacy lists acid reflux treatments through its Acid Reflux treatment page, with options including Omeprazole, Lansoprazole and Esomeprazole GR 20mg.
Omeprazole is a PPI used to reduce stomach acid. The Care Pharmacy product page lists 10mg, 20mg and 40mg options, with 28 or 56 capsule quantities, currently priced from £14.99 to £31.99. The page notes that Omeprazole may begin relieving heartburn within 1 to 4 days, although full symptom relief may take a few days.
Lansoprazole is also a PPI. The Care Pharmacy product page lists 15mg and 30mg strengths, with a 28-capsule quantity, currently priced from £14.99 to £15.99. It is commonly taken once daily before food, unless a prescriber advises otherwise.
Esomeprazole GR 20mg is another PPI option. The Care Pharmacy page currently lists a 20mg, 28-tablet option at £14.99. It is sometimes known by the brand name Nexium. Esomeprazole may be considered when clinically appropriate, including where previous response to another PPI has not been ideal, but it still requires suitability checks.
| Feature | Omeprazole | Lansoprazole | Esomeprazole |
|---|---|---|---|
| Medicine group | Proton pump inhibitor | Proton pump inhibitor | Proton pump inhibitor |
| Current The Care Pharmacy price | £14.99 to £31.99 | £14.99 to £15.99 | £14.99 |
| Listed strengths | 10mg, 20mg, 40mg | 15mg, 30mg | 20mg |
| Typical timing | Usually once daily, often before food, as directed | Usually once daily, often in the morning before food, as directed | Usually once daily before a meal, as directed |
| How quickly it may help | May begin helping within 1 to 4 days; full relief may take longer | May begin helping within 1 to 4 days | Often within 1 to 2 days, according to the product page |
| Best choice? | Depends on clinical assessment and previous response | Depends on clinical assessment and previous response | May be considered where suitable after assessment |
This table is for general comparison only. It is not a personal recommendation. A clinician must check whether treatment is appropriate for you.
PPIs are widely used, but they are still medicines with precautions. Omeprazole, Lansoprazole and Esomeprazole may not be suitable if you have had an allergic reaction to a PPI, have severe liver problems, are taking certain interacting medicines, are pregnant or breastfeeding without medical advice, or have symptoms that need urgent investigation.
Examples of possible medicine interactions include some antifungals, blood thinners, HIV medicines, certain antibiotics and other medicines affected by stomach acidity. This is one reason an online consultation should ask about your current prescriptions, over-the-counter medicines and supplements.
Seek urgent medical help if you have chest pain that could be heart-related, vomiting blood, black or tar-like stools, difficulty swallowing, pain when swallowing, unexplained weight loss, persistent vomiting, severe stomach pain, jaundice, or symptoms that are new and concerning. Call 999 for severe chest pain, breathlessness, collapse or symptoms of a possible heart attack.
NICE guidance advises using PPIs appropriately and reviewing ongoing need. Long-term treatment may be necessary for some people, but it should usually be monitored so the lowest effective dose and duration can be considered.
Common side effects of PPIs can include headache, nausea, stomach pain, constipation, diarrhoea, wind, dizziness or rash. Not everyone gets side effects, and some side effects settle, but you should speak to a pharmacist or doctor if side effects are troublesome, persistent or unusual.
The electronic Medicines Compendium patient leaflets for Lansoprazole and Esomeprazole list important safety information, including allergic reactions, severe skin reactions and side-effect reporting through the MHRA Yellow Card scheme.
Stop taking the medicine and seek urgent advice if you develop swelling of the face, lips, tongue or throat, difficulty breathing, severe rash, blistering or peeling skin, severe diarrhoea, signs of liver problems such as yellowing of the skin or eyes, or symptoms that feel severe or rapidly worsening.
If you want to buy Omeprazole, Lansoprazole or Esomeprazole online in the UK, the safest route is through a regulated pharmacy that uses a proper clinical assessment. Prescription medicines should not be supplied simply because a customer asks for them. A UK clinician must check whether the medicine is suitable and whether any symptoms need face-to-face care or urgent assessment.
The MHRA’s #FakeMeds campaign warns about the risks of buying medicines from unregulated websites. You can also check the MHRA medicines seller register and review GPhC pharmacy registration information.
The Care Pharmacy provides online treatment through a UK pharmacy-led process. You can browse all conditions, view the online shop, or go directly to acid reflux treatments.
The Care Pharmacy is a UK online pharmacy offering clinically reviewed access to treatments across acid reflux, weight loss, men’s health, women’s health, migraine, hay fever, skin health, travel health and general health. The pharmacy is focused on regulated UK supply, transparent product pages and support beyond checkout.
For acid reflux, you can compare treatment options, review pricing and complete an online consultation. A clinician reviews your answers before prescription treatment is supplied. If your symptoms suggest that online treatment is not appropriate, you may be directed to seek further medical care.
Not in a simple one-size-fits-all way. They are different PPIs with different licensed strengths and dosing patterns. The better option depends on your symptoms, previous response, dose, medical history and suitability after assessment.
Omeprazole may start reducing stomach acid within hours, but noticeable heartburn relief often takes 1 to 4 days and full symptom control may take longer. Seek advice if symptoms persist, worsen or return quickly after treatment.
Lansoprazole may begin helping within a few days. It is commonly taken before food, usually in the morning, unless your prescriber gives different instructions. Always follow the label and patient leaflet.
Yes, where clinically appropriate, but prescription treatment should involve an online consultation and review by a qualified clinician. Avoid websites that offer prescription medicines without assessment or make unrealistic claims.
Esomeprazole is related to Omeprazole and may suit some people, but it is not automatically better for everyone. The best option depends on clinical factors and previous response to treatment.
Some people need longer treatment under medical supervision, but PPIs should be reviewed regularly. NICE advises considering the lowest dose that controls symptoms when ongoing treatment is needed.
Seek urgent help for severe chest pain, breathlessness, collapse, vomiting blood, black stools, difficulty swallowing, unexplained weight loss, persistent vomiting, jaundice or severe abdominal pain. These symptoms need medical assessment rather than routine online treatment.
View current acid reflux options at The Care Pharmacy and complete a clinical consultation if you think treatment may be suitable. A UK pharmacy professional will review your information before prescription medicine is supplied.
This article is for general information only and does not replace medical advice, diagnosis or treatment. Do not start, stop or change medicine without speaking to a suitable healthcare professional. Prescription medicines require a clinical assessment to confirm suitability. Seek urgent medical help for red flag symptoms or if you feel seriously unwell.
Medically reviewed by a UK Superintendent Pharmacist
Mohammed Ismail Lakhi MPharm
Superintendent Pharmacist at The Care Pharmacy
GPhC Registration Number: 2072815
The Care Pharmacy applies clinical governance standards to health content and online treatment pathways. Information is reviewed for UK relevance, medicine safety, responsible prescribing language and alignment with regulated pharmacy practice. Product suitability is always assessed individually before prescription treatment is supplied.
Medically reviewed by
Superintendent Pharmacist
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