Prochlorperazine is used to treat nausea (feeling sick) and vomiting (being sick) due to a variety of causes including cancer medication, a migraine headache or following surgery. It's also used for vertigo from Meniere's disease or for short-term management of anxiety. It's thought that prochlorperazine works by blocking the action of dopamine, a chemical in your brain.
In Aotearoa New Zealand, prochlorperazine is available as tablets and can be given as an injection in the hospital. This medicine can't be bought from a pharmacy, it must be written on a prescription by a prescriber.