Pimozide

Indications

INDICATIONS AND USAGE Pimozide tablets, USP are indicated for the suppression of motor and phonic tics in patients with Tourette’s Disorder who have failed to respond satisfactorily to standard treatment. Pimozide tablets, USP are not intended as a treatment of first choice nor is it intended for the treatment of tics that are merely annoying or cosmetically troublesome. Pimozide tablets, USP should be reserved for use in Tourette’s Disorder patients whose development and/or daily life function is severely compromised by the presence of motor and phonic tics. Evidence supporting approval of pimozide tablets, USP for use in Tourette’s Disorder was obtained in two controlled clinical investigations which enrolled patients between the ages of 8 and 53 years. Most subjects in the two trials were 12 or older.

Dosage and administration (summary)

DOSAGE AND ADMINISTRATION General The suppression of tics by pimozide tablets, USP requires a slow and gradual introduction of the drug. The patient’s dose should be carefully adjusted to a point where the suppression of tics and the relief afforded is balanced against the untoward side effects of the drug. An ECG should be done at baseline and periodically thereafter, especially during the period of dose adjustment (see WARNINGS and PRECAUTIONS - Laboratory Tests). Periodic attempts should be made to reduce the dosage of pimozide tablets, USP to see whether or not tics persist at the level and extent first identified.

Contraindications

CONTRAINDICATIONS 1. Pimozide is contraindicated in the treatment of simple tics or tics other than those associated with Tourette’s Disorder. 2. Pimozide should not be used in patients taking drugs that may, themselves, cause motor and phonic tics (e.g., pemoline, methylphenidate and amphetamines) until such patients have been withdrawn from these drugs to determine whether or not the drugs, rather than Tourette’s Disorder, are responsible for the tics. 3.

Warnings and precautions

WARNINGS The use of pimozide in the treatment of Tourette’s Disorder involves different risk/benefit considerations than when antipsychotic drugs are used to treat other conditions. Consequently, a decision to use pimozide should take into consideration the following (see also PRECAUTIONS - Information for Patients ). Tardive Dyskinesia A syndrome consisting of potentially irreversible, involuntary, dyskinetic movements may develop in patients treated with antipsychotic drugs.

Pregnancy

Pregnancy: Teratogenic Effects: Reproduction studies performed in rats and rabbits at oral doses up to 8 times the maximum human dose did not reveal evidence of teratogenicity. In the rat, however, this multiple of the human dose resulted in decreased pregnancies and in the retarded development of fetuses.

Storage and supply

HOW SUPPLIED Pimozide Tablets USP, 1 mg are white to off-white, uncoated round shaped tablets with debossed bisect separating "EP" and "320" on one side and other side has a single bisect. They are available in bottles of 100 (NDC 49884-347-01).

Source: Pimozide (Pimozide) — US FDA prescribing information, 2026-08-12, DailyMed. Summarised and shortened; the full label governs. Iranian registration, indications and labelling may differ.