A method for treating the psychiatric disorders known as oppositional defiant disorder and conduct disorder is disclosed. The method comprises the administration of a compound according to Formula I or II to a patient suffering from oppositional defiant disorder and/or conduct disorder. The compound may be either a racemic mixture or e.g. the levorotatory form. It may be short acting or in a sustained release, long acting form. Molindone or a pharmaceutically acceptable salt of molindone is a preferred embodiment.
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