Cancer
Medicines for Stomach cancer
A cancer of the stomach lining that often causes vague digestive symptoms early on — treatable when caught early, so persistent or alarm symptoms should be checked.
Education and reference only. This explains which medicines are used and why, in plain language — it deliberately contains no doses and is not a substitute for advice from your doctor or pharmacist. Always discuss your own treatment with a qualified clinician, and check the BNF and the product labelling for prescribing detail.
Quick answer
What is Stomach cancer?
Stomach (gastric) cancer usually develops in the lining of the stomach. Early symptoms are often vague and easily mistaken for common problems — persistent indigestion, heartburn, feeling full quickly, and discomfort in the upper tummy.
- How it is treated: Treatment depends on the stage and the person's health.
- Self-care: Not smoking, a balanced diet rich in fruit and vegetables, limiting very salty and processed foods, and treating Helicobacter pylori infection where found all reduce risk.
- When to seek help: See a GP about persistent indigestion, feeling full quickly, unexplained weight loss, difficulty swallowing, or black or bloody stools.
What it is
Stomach (gastric) cancer usually develops in the lining of the stomach. Early symptoms are often vague and easily mistaken for common problems — persistent indigestion, heartburn, feeling full quickly, and discomfort in the upper tummy. As it progresses there may be unexplained weight loss, nausea or vomiting, difficulty swallowing, tiredness from anaemia, or signs of bleeding such as black stools. Risk factors include older age, infection with the stomach bacterium Helicobacter pylori, smoking, certain dietary factors and a family history. Because symptoms overlap with everyday complaints, alarm features and persistent symptoms are investigated, usually with an endoscopy.
How it is treated
Treatment depends on the stage and the person's health. Early stomach cancers may be treated with surgery, sometimes removing part or all of the stomach, and small, very early cancers can occasionally be removed at endoscopy. Chemotherapy is often used before and/or after surgery, and radiotherapy and newer targeted or immunotherapy treatments have roles in certain cases. When cure is not possible, treatments focus on controlling the cancer and relieving symptoms, with strong emphasis on nutrition. Care is coordinated by a specialist team with dietitian input.
For this condition, these medicines
Medicine classes used for Stomach cancer
Each links to a full, dose-free guide — what it is, how it works, who can and cannot use it, side effects, interactions and FAQs.
Beyond medication
Lifestyle and self-care
Not smoking, a balanced diet rich in fruit and vegetables, limiting very salty and processed foods, and treating Helicobacter pylori infection where found all reduce risk. Dietitian support is important during treatment.
When to get help
When to see a doctor
See a GP about persistent indigestion, feeling full quickly, unexplained weight loss, difficulty swallowing, or black or bloody stools. Seek urgent care for vomiting blood or signs of significant bleeding.
Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.
Answers
Stomach cancer: frequently asked questions
What are the early signs of stomach cancer?
They are often vague — persistent indigestion, heartburn, feeling full quickly and upper-tummy discomfort. Persistent symptoms, or alarm features like weight loss or difficulty swallowing, should be checked.
Can bacteria cause stomach cancer?
Long-term infection with Helicobacter pylori increases the risk of stomach cancer, which is one reason this infection is treated when found.
Sources
Where this is drawn from
- NICE NG12 — Suspected cancer
- NHS — Stomach cancer
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