The next generation?

This table lists a selection of antipsychotics in the pipeline. For a story on a new class of drugs some are referring to as the "atypical atypicals," click here. For a table of first-generation drugs, click here. For a table of atypicals, click here.

Name Primary target Phase Manufacturer
Bifeprunox D2 partial, 5-HT1A agonist III Solvay D1, D2, D3, D4 and D5 are the five receptor types for the hormone and neurotransmitter dopamine.

5-HT (5-hydroxytryptamine) refers to the group of receptors for the neurotransmitter serotonin. Each receptor is labeled 1A, 1B, 1D, etc..

Metabotropic glutamate receptors (mGluRs) bind to glutamate, an amino acid and neurotransmitter.

The adenosine receptors, for the nucleoside and neurotransmitter adenosine, are labeled with A followed by a number.

AChR is the receptor for the neurotransmitter acetylcholine.

Glycine is an amino acid and neurotransmitter. It is a co-agonist (as is glutamate) for NMDA receptors.

At least 70 different compounds are in various phases of development for the treatment of schizophrenia. These examples demonstrate the range of targets for these drugs and of drug companies producing them.
LY2140023 mGluR2 II Eli Lilly
Ocaperidone D2, 5-HT2A II Johnson & Johnson
Dexefaroxan a2AR, AChR agonist II Pierre Fabre
ALX-5407 Glycine transporter I NPS Pharmaceuticals
SSR-181507 D2, 5-HT1A I Sanofi-Aventis
PD-157695 D2, D3 preclinical Pfizer
Organon Glycine transporter preclinical Akzo Nobel
unnamed mGluR2 preclinical Merck & Co.
unnamed mGluR preclinical Taisho