Antipsychotic

What antipsychotic actually is

An antipsychotic is a class of medication that helps treat psychosis, the state where a person loses some contact with reality through hallucinations or delusions. These medicines mostly work by adjusting dopamine activity in the brain, and some affect serotonin too. By calming that overactive signaling, they can reduce hallucinations, disordered thinking, and severe agitation.

Antipsychotics treat more than schizophrenia. Prescribers also use them in bipolar disorder, both for manic episodes and sometimes for maintenance, and they’re often added alongside an antidepressant when depression hasn’t responded to treatment on its own. The specific choice depends on the diagnosis, the symptoms, and a person’s health history, and that’s a decision for a prescriber to make.

What to expect

Antipsychotics fall into two broad groups. The older ones are called typical or first-generation antipsychotics. The newer ones are called atypical or second-generation antipsychotics, and they’re the more common starting choice today. The two groups differ mostly in their side effect profiles rather than in whether they work.

How quickly someone notices change varies. Agitation and sleep can improve within days, while the fuller effect on hallucinations or mood can take weeks. Side effects matter with this class, so prescribers usually monitor things like weight, blood sugar, and movement over time. People shouldn’t start, switch, or stop an antipsychotic on their own, since stopping suddenly can trigger a return of symptoms. Any change goes through the prescriber.

What antipsychotic isn’t

An antipsychotic isn’t a sedative whose only job is to knock someone out, even though some can cause drowsiness. The point is to treat specific symptoms, not simply to dull a person.

It also isn’t only for schizophrenia, and being prescribed one doesn’t mean a person has lost touch with reality. Many people take a low dose as an add-on for mood conditions. And it isn’t a quick fix. Like most psychiatric medications, it works best as part of a broader plan that can include therapy and regular follow-up.

Related terms you’ll see next

• Dopamine
• Mood stabilizer
• Schizophrenia
• Bipolar disorder

When to seek professional care

Anyone experiencing hallucinations, delusions, severe mood swings, or thoughts that feel out of their control should reach out to a doctor or mental health professional. These are treatable, and earlier help tends to lead to better outcomes. A prescriber can decide whether an antipsychotic fits and can watch for side effects along the way. If a person or someone they love is in immediate danger, call 911, or call or text 988 in the US to reach the Suicide and Crisis Lifeline.