Haldol® (haloperidol) is a prescription medication licensed to treat behavior problems, psychotic disorders, tics associated with Tourette syndrome, and attention deficit hyperactivity disorder (ADHD). There are three different forms of the drug: injection, tablets, and an oral solution.
There are two injectable forms of Haldol, including a short-acting form (given several times per day) and a long-acting form (given just once a month). Short-acting injectable Haldol is approved for treating schizophrenia and Tourette syndrome, while the long-acting injection is approved for chronic treatment of schizophrenia.
Haldol belongs to a group of medications called "typical" or (first-generation) antipsychotic medications. It is not known precisely how the drug works. However, it is known that Haldol blocks or lessens the effects of dopamine, a chemical in the brain. Dopamine may be elevated in people with schizophrenia or other psychotic or behavior disorders.
(Click Haldol for more information on when and how to use this medication, to learn more about the specific effects of Haldol, and to find out what you should discuss with your healthcare provider before using this drug.)