What should you know about the most common nausea medicine?

Nausea can come from stomach irritation, infection, reflux, motion, migraine, medicines, heat illness, or a problem elsewhere in the body. Anti-sickness medicines work in different ways: some calm signals between the gut and brain, while others help the stomach move food onward. A pharmacist or clinician can help match a product to the likely cause. Nausea with vomiting, diarrhoea, severe pain, or dizziness may need attention to fluids as well as symptom relief.

Take only a medicine suitable for you and follow its label or prescription directions. Check before using it if you are pregnant, caring for a child, have glaucoma, heart rhythm problems, liver disease, or take medicines that cause sleepiness. Small sips of fluid, bland foods when tolerated, fresh air, and avoiding strong smells may help. Do not drive if a product makes you drowsy. Consider whether symptoms fit conditions such as Food Poisoning, Gastritis, or Gastroenteritis, and seek advice if they persist.

Get urgent help for blood or coffee-ground material in vomit, green vomit, severe or worsening abdominal pain, a swollen abdomen, confusion, fainting, chest pain, trouble breathing, or signs of serious dehydration such as very little urine. Prompt assessment is also needed when vomiting prevents fluids, follows a head injury, or affects an infant, older adult, or person with a significant medical condition.

Which medicine fits the likely cause of my nausea? How soon should it work, and what side effects should I watch for? Should I change any regular medicines or avoid driving? What fluid plan is suitable if I am vomiting?