I've read the case of Witty Ticcy Ray: a 24 years old man with disabling Tourette’s syndrome. The first Dr. Sacks's treatment, with Haldol, provokes a strong change in Ray's behavior: from tics and excitement to a catatonic state. Ray didn't like this.
They had a period of three months of therapy in which Ray could express himself, he said that he couldn't live without his disease.
Finally they found a compromise: During the week, Ray took Haldol, on weekends, he stopped it and he was again ’witty ticcy Ray’. This therapy was accepted by the patient and was succesful.
Is it in any way dangerous to take an antipsychotic drug with that discontinuity?