Cromoglicate Adjunctive Therapy for Outpatients With Schizophrenia

Inclusion Criteria:

* Written informed consent.
* Both genders, ages 18-60 years
* Schizophrenia / schizoaffective disorder (DSM V).
* Treated with the same APD for at least 60 days; Stable dose of APD for \> 1 month, continued throughout the study.
* PANSS total score of 60 and Score 4 or more on one or more items of the 'positive' syndrome items (P1-P7)
* Preference for patients with duration of psychosis less than 7 years.

Exclusion Criteria:

* No illicit substance use in last 30 days/no dependence in 6 months with the exception of methadone treatment for opioid withdrawal.
* History or current medical /neurological illnesses that may lead to an unstable course with the exception of epilepsy which is well-controlled on an antiepileptic medication for at least 6 months.
* Pregnancy.
* History of immune disorders, HIV infection, or receiving immune-suppressants or immuno-modulators, e.g., steroids.
* Current or prior treatment with CGY or History of hypersensitivity to CGY.
* Intellectual disability as defined in DSM V.