Quetiapine (thing)

Quetiapine (brand name Seroquel) is an atypical antipsychotic drug developed by Zeneca with the chemical formula C₄₂H₅₀N₆O₄S₂. It is classed as a dibenzothiazepine and used in the treatment of schizophrenia. The daily dosage range is between 300 and 450 mg, split into 2 doses.

Quetiapine has a greater affinity for 5-HT₂ receptors than D₂ receptors, which is thought to be the reason for the drug causing less extrapyramidal symptoms. Somnolence is the most common side effect.

Chemical strucutre:

                  H H  H H  H
                   \|  |/    \
             H  H   C--C  H   C--O--H
              \  \ /    \  \ / \
           H   C--N+     O--C   H
            \ /    \         \
             C      C--H      H
            / \    / \
           H   N--C   H
              /  /|
   H      N==C  H H  H
    \    /    \     /
     C--C      C---C
   //    \\   //    \\
H--C      C   C      C
    \    / \ / \    / \
     C==C   S   C==C   H
    /    \     /    \
   H      H   H      H

Sources:
http://www.priory.com/focus4.htm
http://www.biopsychiatry.com/quetschizo.htm