Zantac rx

Zantac rx

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Zantac RX is a stomach acid inhibitor. It contains the active ingredient ranitidine, which reduces the amount of acid produced by cells in the lining of the stomach. More information

Lowest price
Not available
Out of stock
Prescription required
Yes (consultation included in the price)

Read the package leaflet for more information about risks and side effects, or ask your doctor or pharmacist for advice.

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Patient Leaflet(s)

What is Zantac RX?

Zantac RX is a stomach acid inhibitor. It contains the active ingredient ranitidine, which reduces the amount of acid produced by cells in the lining of the stomach. This is helpful in the treatment of symptoms caused by too much acid being produced in the stomach, such as acid reflux or heartburn (reflux oesophagitis) and stomach pain. You can order Zantac RX online via a partner pharmacy. Zantac RX is a prescription-only medicine that can be obtained through an online consultation.

What is Zantac RX used for?

Zantac RX is used to treat stomach ulcers, ulcers of the upper part of the intestine, acid reflux or oesophagitis (inflammation of the oesophagus). It works by reducing the amount of acid produced by your stomach. This allows the gastrointestinal mucous membranes to relax and heal. Zantac RX may also be prescribed to protect the stomach from possible problems, for example in the case of recurrent peptic ulcers or bleeding.

How to use Zantac RX

Zantac RX tablets should be swallowed whole with some water. The best time to take your tablet is before bedtime. If you are taking more than one dose, it’s important to space the doses evenly throughout the day to keep levels in the body constant. If you have forgotten to take a dose, you should take it as soon as you remember, unless it is almost time for your next scheduled dose. Never take a double dose to make up for the forgotten one. The duration of treatment should be determined by a doctor. Consult a doctor if your symptoms do not improve or appear to worsen.


Zantac RX is available online from our partner pharmacies in various strengths. The doctor will recommend the right strength for you depending on your symptoms. The generally recommended dose in adults is:

  • 00 mg once daily (bedtime), or 150 mg twice daily (morning and bedtime).

The appropriate dose for children should be determined by a doctor. Read the package leaflet before use.

Side effects

Like all other medicines Zantac RX may cause side effects, although not everyone gets them. In rare cases Zantac RX has been known to cause:

  • Headache;
  • Dizziness;
  • Skin rash;
  • Muscle and joint pain.

Most side effects are usually only temporary and will disappear once the body adjusts to the medicine. If this is not the case or if your symptoms get worse, consult a doctor. For more information on side effects, see the package leaflet.

When not to use Zantac RX

Zantac RX is not suitable for everyone and should not be used if:

  • You have health problems such as a liver, kidney or blood disease, a heart condition or diabetes. Zantac RX may interact with some medicines.

It is therefore important that you tell the doctor what other medicines you are currently taking when you order.

Pregnancy/driving ability/alcohol

Zantac RX should not be used by pregnant or breastfeeding women without consulting a doctor first.

Zantac RX may cause dizziness. Avoid driving if you experience this side effect.

Avoid drinking alcohol while taking this medicine as this is likely to worsen your stomach problems.

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