Stomach cancer nausea causes symptoms in a lot of sufferers. There are many reasons for this and I will guide you through these and the treatment that is available to you.

I will show you some of the natural treatment options as well as the more common prescribed drugs that can be very effective.

Stomach Cancer And Feeling SIck

The feeling of sickness occurs for 6 main reasons:

  • The stomach tumor itself
  • Chemotherapy
  • Surgery
  • Metastatic spread
  • Electrolyte and Mineral changes
  • Anxiety

Stomach Cancer Nausea Causes


The main reason why the tumor itself can promote sickness is through either preventing stomach contraction or through blocking the outlet or inlet to the stomach.

As the malignancy invades the stomach wall, the normal motility or contraction of the muscle layer is interrupted.

It is the contraction of your stomach that will normally allow the emptying of the stomach in a coordinated way.

As a result, fluid and food will build up and this is what makes you feel sick. Eventually vomiting will occur if this isn't relieved.


Bleeding from stomach cancer is not uncommon. If bleeding occurs it can make you feel sick and vomiting can occur.

If it has been present for a while, the blood turns black in color and looks like coffee grounds. When you open your bowels, you may notice that your bowel motions are black and tarry.

Chemotherapy And Sickness

A lot of chemotherapy agents have the side effect of feeling sick. This is either as a result of the drug itself or the damage it can inflict on your gastrointestinal tract.

Fortunately this is usually well controlled with medications and can be an expected issue when you embark on your treatment.


Surgical procedures can often promote stomach cancer nausea. This is usually due to a condition called ‘ileus’ where the bowels normal contractility is absent or reduced. As a result, a blockage occurs although this is usually a temporary issue.

The anesthetic that is given to you during your operation can cause sickness symptoms too.

Metastatic Spread

When the tumor spreads within the abdomen, the metastases can cause obstruction of the bowel in some cases. One of the effects of this is feeling sick and vomiting. If this occurs, you would normally be treated as an inpatient in a hospital.

An uncommon cause of stomach cancer nausea is through the spread of the tumor to the brain. If this occurs, it is usually in the later stages of the disease.

If this does happen, the tumor can cause raised intra-cranial pressure which can make you feel nauseous.

Electrolyte And Mineral Changes

Electrolytes such as potassium and sodium are required for your body to function.  Low levels can occur through vomiting and excessive loss. If this occurs, your gut can become disturbed and nausea can prevail.

High calcium mineral levels can occur known as hypercalcaemia. This can result from either the tumor producing a hormone that releases calcium from the bone or more commonly from the spread of your tumor to the bone.

Your doctor can replace electrolytes and correct the calcium levels with medication.

Natural Remedies

There are several natural remedies that may help your nausea:


Ginger has been known to reduce cancer nausea symptoms for a long time. It is a remedy that pregnant women are often recommended, but it can help in any situation.

There are many ways that you can have this including ginger root, biscuits, lozenges and drinks.

It is safe, effective and unlikely to interact with any medications that you are taking.


Chamomile is derived from the daisy plant and normally given as herbal tea. It is relaxing, soothing and can help aid sleep too as drowsiness can occur.

It has been shown to reduce nausea and is safe to have with most medicines although check with your doctor if you are on any medications.

There are many different tea combinations on the market so dosing varies. In most cases the tea can be taken up to four times a day.


Peppermint is another natural remedy that can ease your nausea symptoms.  It comes in various forms including tablets, capsules, liquid, oils, powders and tea.

Peppermint tea is the most commonly used to ease nausea. It also has an anti-colic effect and is relaxing too.

Complimentary Therapies

There are various complimentary medical practices that have been used over the years to aid symptom control.

Common ones include acupuncture, acupressure, massage and homoeopathy. 

Cancer Nausea Medicines

When it comes to sickness, medicines are usually the route most people will take to alleviate symptoms.  However If you are vomiting, the most important thing is to keep hydrated.

Dehydration is the single biggest concern as this can lead to dizziness, light-headedness, headache, palpitations and in some cases collapse.

Trying to maintain your fluid intake is very important and the use of oral rehydration salts such as dioralyte may help.

Anti-sickness medicines known as antiemetic’s can be administered to you in many different ways:

Buccal or dissolving tablets

Intravenous (IV) or Intramuscular (IM) injection


Skin Patches

Subcutaneous infusions ( just under the skin)

The main anti-sickness medications are:

Table of The Main Anti-Sickness Medications







Steroids (Dexamethasone)





Levomeperizone (Nozinan)

Choice of Anti-Sickness Medications

The choice of anti-sickness medications depends on the cause of your nausea.

There are many factors involved and these include physical, drugs, chemical and psychological reasons.

Your doctor will decide on the best course for you, but as a rule of thumb:

  • Most anti-sickness medicines are used either to prevent or treat nausea.

  • If anxiety is a strong factor, sedating drugs such as Levomeperizone and Haloperidol will be offered to you.
  • Steroids have a roll in preventing and treating nausea symptoms caused by cancer chemotherapy

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