Acid reflux/indigestion or heartburn are terms used interchangeably to describe the burning pain caused by stomach acid.

Buy acid reflux treatment online from DrFelix to get your heartburn under control. DrFelix offers a range of prescription treatments for Gastro-Oesophageal Reflux Disease (GORD).

Order regular Losec (Omeprazole) or Zantac (Ranitidine) for people with severe or ongoing acid symptoms. Simply fill in a quick form and place your order in 3 easy steps.

Complete a short consultation before selecting your medication. All our consultations are approved by a UK Medical Doctor.

Summary of available medications

Medication Quantity Price
Losec (Omeprazole) 10mg 28 or 56 capsules From £19.99
Omeprazole 10mg (Generic Losec) 28 or 56 capsules From £9.99
Zantac (Ranitidine) 150mg 30 or 60 tablets From £7.99
Ranitidine 150mg (Generic Zantac) 30 or 60 tablets From £6.99
Losec 20mg 28 capsules £24.99
Losec MUPS Orodispersible 20mg 28 tablets £22.99
Omeprazole 20mg 28 capsules £17.99
Omeprazole Orodispersible 20mg 28 tablets £19.99
Lansoprazole 15mg 28 capsules £16.99

All medications


Medication Quantity Price
Losec (Omeprazole) 10mg 28 capsules £19.99
Losec (Omeprazole) 10mg 56 capsules £29.99
Omeprazole 10mg (Generic Losec) 28 capsules £9.99
Omeprazole 10mg (Generic Losec) 56 capsules £15.99
Losec 20mg 28 capsules £24.99
Losec MUPS Orodispersible 20mg 28 tablets £22.99
Omeprazole 20mg 28 capsules £17.99
Omeprazole Orodispersible 20mg 28 tablets £19.99

Lansoprazole (Brand: Zoton Fastabs)

Medication Quantity Price
Lansoprazole 15mg 28 capsules £16.99


Medication Quantity Price
Zantac (Ranitidine) 150mg 30 tablets £7.99
Zantac (Ranitidine) 150mg 60 tablets £13.99
Ranitidine 150mg (Generic Zantac) 30 tablets £6.99
Ranitidine 150mg (Generic Zantac) 60 tablets £11.99

All prices exclude prescription fee

What is acid reflux?

Acid reflux also known as ‘Gastro-Oesophageal Reflux Disease’, heartburn and indigestion are all terms often used interchangeably. All of them refer to the same issue of experiencing a burning pain from stomach acids. Acid reflux is quite common affecting 1 in 5 people of all ages; however it is more common in men than women especially over the age of 40.

How does acid reflux occur?

There is a tube between the throat and the stomach, where acid produced in the stomach can travel up which leads to a burning sensation in the chest and an acid taste in the mouth. This normally happens due to the muscles in the gullet (oesophagus) becoming weaker.

What are the common symptoms of acid reflux?

Some common symptoms of gastroesophageal reflux disease (GORD) or acid reflux are:
  • Burning sensation in the breastbone
  • Taste of acid in the throat or mouth
  • Difficulty in swallowing food or liquids
  • Severe heartburn after a meal

How common is acid reflux (GORD)?

Statistics shows 1 in 5 people will suffer from heartburn, including children. However, in reality almost everyone experiences acid reflux at some point in their life. It can come about through eating spicy food, drinking a lot of wine or acid drinks.

How to treat acid reflux?

For most people, antiacid medicine will fix the problem, but for those who suffer from acid reflux as a recurring issue require prescription treatment. Some people will usually take Losec / omeprazole or Zantac / ranitidine and symptoms settle within a few days for 1 or 2 weeks. For others, long term medication may be required. It is possible to take Losec (Omeprazole) or Zantac (Ranitidine) only when you require to keep the acid reflux under control.

How can you treat acid reflux?

It is easy to treat acid reflux with Losec or Zantac. Doctors will normally prescribe Losec (Omeprazole) or Zantac (Ranitidine) as a regular medication for people with recurring issues.

Losec is notably more effective by suppressing acid for 24 hours whilst Zantac only suppressed it for 12 hours. Both are equally effective for people with occasional heartburn.

Take one or two daily doses of Losec or Zantac whenever needed to suppress the flared up symptoms.

What is Losec or Prilosec?

Losec and Prilosec are branded versions of omeprazole. DrFelix offers the branded Losec and the generic Omeprazole at a much lower price. Both medications are clinically identical and equally as effective.

What is Omeprazole?

Omeprazole is a proton pump inhibitors and the active ingredient in Losec. Omeprazole works by decreasing the amount of acid in the stomach which causes heartburn. It is prescribed for GORD (stomach acid) and other related conditions.

What are the risks associated with acid reflux treatment?

Losec and Zantac are normally considered safe medication. Both interact with other medicine such as Phenytoin and Warfarin. The major risk associated with losec or zantac is covering up potential symptoms of stomach or gullet cancer.

Due to this reason you not take acid reflux treatments without seeing a doctor face to face if any of the following apply to you:

  • If you are 45 years old or above
  • Acid reflux has come about in the last year
  • You are anaemic
  • Pain on swallowing
  • Vomiting with blood in it
  • Jaundice
  • Sudden weight loss

How to take Losec or Omeprazole

Losec and Omeprazole – Start with a daily dose of 10mg once daily and increase to two if symptoms are not under control. Losec or omeprazole is most effective when taken continuously for 5 days.

The starting dose of Losec is one 10mg capsule daily. This can be doubled to two 10mg capsules daily if symptoms are not controlled by the lower dose. Losec works best if taken daily for 4-5 days to settle symptoms down.

Take Losec or Omeprazole before a meal. Do not overdose on either medicine and only take as and when required. Avoid crushing or breaking these tablets, swallow whole with a full glass of water.

How to take Zantac or Ranitidine

Zantac 150mg – Take ONE tablet twice a day for 4 to 5 days to settle the symptoms down.

Ranitidine 150mg – Take ONE tablet twice a day for 4 to 5 days to settle the symptoms down.

Zantac or Ranitidine both can be taken on a required basis to keep acid reflux under control.

Side effects of acid reflux treatments

Side effects of Losec (omeprazole) and Zantac (ranitidine) are normally mild and reversible as both are well tolerated medications.

Common Side Effects of Losec and Omeprazole

  • Headache
  • Nausea
  • Diarrhoea
  • Pain in the abdomen
  • Possible vomiting
  • Constipation

Common Side Effects of Zantac and Ranitidine

  • Headache
  • Dizziness
  • Diarrhoea

Refer to the patient information leaflet for a complete list of side effects.