Generic name: mesoridazine besylate
Dosage form: Tablets USP, Injection, USP and Oral Solution, USP
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Since Serentil® (mesoridazine besylate) is associated with a dose-related prolongation of the QTc interval, which is a potentially life-threatening event, its use should be reserved for schizophrenia patients who fail to respond adequately to treatment with other antipsychotic drugs (see INDICATIONS and WARNINGS).
The dosage of Serentil, as with most medications, should be adjusted to the needs of the individual. The lowest effective dosage should always be used. When maximum response is achieved, dosage may be reduced gradually to a maintenance dose.
Tablets and Oral Solution
For most patients, regardless of severity, a starting dose of 50 mg three times a day is recommended. The usual optimum total daily dose range is 100-400 mg per day.
In those situations in which an intramuscular form of medication is indicated, Serentil injectable is available. For most patients, a starting dose of 25 mg is recommended. The dose may be repeated in 30 to 60 minutes, if necessary. The usual optimum total daily dose range is 25-200 mg per day.