What should you know about prescription medicines for nausea?

Nausea can accompany stomach irritation, infection, reflux, gallbladder problems, heat illness, low blood glucose, pregnancy, medication effects, or other conditions. A prescription medicine may calm the vomiting pathway or improve movement through the stomach, depending on the situation. It may reduce a symptom without treating its cause. The clinician will consider your age, pregnancy possibility, heart rhythm history, allergies, liver or kidney problems, and other medicines before choosing an option. Mention whether you are vomiting, have diarrhoea, pain, fever, headache, or trouble keeping fluids down.

Use the prescribed amount and timing, and do not share the medicine or add another anti-nausea product without checking. Take small sips of fluid and try light foods when tolerated. Avoid driving if the medicine makes you sleepy or affects alertness. Seek advice if symptoms continue despite treatment, return repeatedly, or begin after a new medicine. Nausea can occur with [Food Poisoning](/conditions/food-poisoning/), [Gastroenteritis](/conditions/gastroenteritis/), [Acid Reflux](/conditions/acid-reflux/), or [Gastritis](/conditions/gastritis/), so the treatment plan should match the suspected cause.

Get urgent medical help for blood or green vomit, severe or worsening abdominal pain, a stiff neck with severe headache, confusion, fainting, chest pain, or signs of serious dehydration such as very little urine and marked weakness. Prompt care is also needed if you cannot keep fluids down, have a high fever, or may have [Heat Exhaustion](/conditions/heat-exhaustion/) or [Hypoglycaemia](/conditions/hypoglycaemia/). Persistent nausea with yellowing of the skin or eyes needs medical review because liver or gallbladder illness may be involved.

Ask what is most likely causing the nausea, how quickly the medicine should work, and whether it can cause drowsiness or constipation. Check what to do after vomiting a dose, which fluids are suitable, and which changes mean you need reassessment.