Bristol Myers Squibb awaits FDA decision on KarXT, a novel schizophrenia treatment potentially representing the first new approach in decades. KarXT, acquired via $14 billion deal with Karuna Therapeutics, targets M1 and M4 muscarinic receptors, offering efficacy without antipsychotic side effects. Other companies, including Neurocrine Biosciences, AbbVie, Reviva Pharmaceuticals, Boehringer Ingelheim, and Alto Neuroscience, are also developing schizophrenia treatments, focusing on various mechanisms to address positive, negative, and cognitive symptoms.