Medicines for nausea and diarrhoea

A stomach infection or contaminated food can irritate the gut and trigger both symptoms. Food Poisoning and Gastroenteritis are common examples; other causes include medication effects and conditions such as Acid Reflux or Gastritis. Anti-sickness treatment may reduce vomiting, but it does not remove an infection. Some diarrhoea-stopping products are unsuitable when there is fever, blood in the stool, or suspected invasive infection.

Dehydration can develop because the body loses water and salts through loose stools and vomiting. Children, older adults, pregnant people, and those with ongoing illnesses may need advice sooner.

Take frequent small sips of water or an oral rehydration drink; if vomiting follows a large drink, pause briefly and restart with smaller sips. Eat light foods as tolerated and avoid alcohol, very fatty meals, and foods that clearly aggravate symptoms. Ask a pharmacist before using anti-diarrhoeal or anti-sickness medicine, and follow the package directions rather than combining products.

Seek urgent care for blood or black stool, severe belly pain, fainting, confusion, very little urine, or inability to retain fluids. Contact a clinician if symptoms are persistent, worsening, follow recent travel, or affect a person who is frail or immunocompromised. Heat Exhaustion and Hypoglycaemia can also cause nausea and require attention to the underlying problem.

Ask which fluids are appropriate, whether a medicine is safe with your regular prescriptions, and what changes mean you should stop self-care. Mention recent antibiotics, travel, pregnancy, and any blood or fever.