Medication for nausea with diarrhoea

An anti-nausea medicine may make drinking easier, but it does not replace lost water and salts. A diarrhoea-stopping product is unsuitable in some situations, particularly when there is blood in the stool, fever or suspected infection.

Gastroenteritis and food poisoning can present with nausea, vomiting, loose stools and abdominal cramps. Medicines that slow the bowel can hold infectious material in the gut and may mask worsening symptoms.

Other medicines can also trigger digestive symptoms. A pharmacist needs to know your age, pregnancy status, medical conditions and current treatments before recommending a product. Children, older adults and people with kidney, liver or heart problems can become unwell from fluid loss more readily.

Take frequent small sips of oral rehydration solution or another tolerated fluid. Oral rehydration products contain a measured balance of water, sugar and salts; mix them exactly as directed. Resume light, familiar foods when appetite returns rather than forcing a large meal.

Check the active ingredients before combining products because different brands may contain the same medicine. Avoid alcohol, and do not drive if an anti-nausea product makes you sleepy. If a prescription medicine seems to be the trigger, contact the prescriber before changing or stopping it.

Arrange prompt care if you cannot keep fluids down, urinate much less than usual, have a very dry mouth, feel faint on standing or become unusually drowsy. Seek assessment as well for continuing diarrhoea, worsening pain, fever or symptoms after recent antibiotics or travel.

Obtain urgent help for blood or black stool, vomit containing blood or green material, severe or localised abdominal pain, a rigid abdomen, confusion, collapse or breathing difficulty. A young child with reduced responsiveness, no tears or markedly fewer wet nappies also needs urgent review.

Ask which active ingredient is appropriate, what side effects could overlap with dehydration, and whether it interacts with your regular medicines. Mention blood in stool, fever, recent antibiotics, travel, pregnancy and any long-term condition before purchasing treatment.