Sometimes when people have a mental health condition, they might take medicine called antipsychotics to help them feel better. But sometimes the first medicine they take might not work as well as it should, or it might cause some side effects that aren't good.
When this happens, their doctor might recommend they switch to a different antipsychotic medicine. This means they stop taking the first one and start taking a new one instead.
Switching medicines can be tricky, though, because everyone's body is different and reacts to medicine in different ways. That's why the doctor will be very careful and will want to make sure the new medicine is safe and will work well for the person.
They might do things like slowly lower the dose of the old medicine before starting the new one or start the new medicine at a very low dose to see how the person's body reacts.
Overall, switching antipsychotic medicine is just the process of changing from one medicine to another to help someone feel better and stay healthy.