Ruby S. Grewal, MD

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Articles

8 Distinguishing Features of Primary Psychosis Versus Cannabis-Induced Psychosis

Ruby S. Grewal, MD;Tony P. George, MD, FRCPC

August 4th 2017

The authors compare the clinical features of idiopathic psychosis (eg, schizophrenia) with cannabis-induced psychosis.

Cannabis-Induced Psychosis: A Review

Ruby S. Grewal, MD;Tony P. George, MD, FRCPC

July 14th 2017

Numerous lines of evidence suggest a correlation between cannabis consumption and a variety of psychiatric conditions, including cannabis-induced psychosis.

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Celebrating 40 Years, A Midway Check-In

Published: June 27th 2025 | Updated: July 11th 2025

ALTO-203 Fails to Meet Primary Efficacy Endpoint in Phase 2 Major Depressive Disorder Trial

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