Haldol Decanoate is a long-acting form of haloperidol, a medication primarily used in the treatment of schizophrenia and other psychotic disorders. It belongs to a class of drugs known as antipsychotics, which work by helping to restore the balance of certain natural substances in the brain. Haldol Decanoate is administered through an injection into a muscle, and its effects can last for up to four weeks, making it a convenient option for patients who have difficulty adhering to daily medication regimens. It is important to note that this medication can have significant side effects and should be used under the close supervision of a healthcare provider.