The dose of Haldol Decanoate 50 or Haldol Decanoate 100 should be expressed in terms of its haloperidol content. The starting dose of haloperidol decanoate should be based on the patient's age, clinical history, physical condition, and response to previous antipsychotic therapy. The preferred approach to determining the minimum effective dose is to begin with lower initial doses and to adjust the dose upward as needed. For patients previously maintained on low doses of antipsychotics (. up to the equivalent of 10 mg/day oral haloperidol), it is recommended that the initial dose of haloperidol decanoate be 10–15 times the previous daily dose in oral haloperidol equivalents; limited clinical experience suggests that lower initial doses may be adequate.
ADHD is not uncommon in children with Tourette's syndrome. Treating the deficit in attention as well as the hyperactivity with medications such as methylphenidate (Ritalin) or amphetamines (Adderall) might be very effective when accommodations in the school setting fail. There are some concerns with the use of these medications because, allegedly, they can produce or exacerbate existing tics. However, several studies have shown that their effects on tics is temporary even with continuous use. So if these medications are indicated the presence of tics is not an absolute contraindication to their use.