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Systematic (IUPAC) name
Clinical data
Trade names Moban
AHFS/ Consumer Drug Information
MedlinePlus a682238
  • C
Legal status
  • (Prescription only)
Routes of
Pharmacokinetic data
Metabolism Hepatic
Biological half-life 1.5 hours
Excretion Minor, renal and fecal
CAS Registry Number 7416-34-4 YesY
ATC code N05AE02
PubChem CID: 23897
DrugBank DB01618 N
ChemSpider 22342 YesY
KEGG D08226 YesY
Chemical data
Formula C16H24N2O2
Molecular mass 276.374 g/mol
 N (what is this?)  (verify)

Molindone (Moban) is a therapeutic antipsychotic, used in the treatment of schizophrenia.[1] It works by blocking the effects of dopamine in the brain, leading to diminished psychoses. It is rapidly absorbed when taken orally.

It is sometimes described as a typical antipsychotic,[2] and sometimes described as an atypical antipsychotic.[3]

Molindone was discontinued by its sole supplier, Endo Pharmaceuticals, on January 13, 2010. [4]

Adverse effects[edit]

Main article: Typical antipsychotic

The side effect profile of molindone is similar to that of other typical antipsychotics. Unlike most antipsychotics, however, molindone use is associated with weight loss.[3][5]


Molindone synthesis: SCHOEN KARL, J PACHTER IRWIN; BE 670798  (1965 to Endo Lab).

Condensation of oximinoketone 2 (from nitrosation of 3-pentanone), with 1,3-Cyclohexanedione (1) in the presenec of zinc and acetic acid leads directly to the partly reduced indole derivative 6. The transformation may be rationalized by assuming as the first step, reduction of 2 to the corresponding α-aminoketone. Conjugate addition of the amine to 1 followed by elimination of hydroxide (as water) would give ene-aminoketone 3. This enamine may be assumed to be in tautomeric equilibrium with imine 4. Aldol condensation of the side chain carbonyl group with the doubly activated ring methylene[disambiguation needed] would then result in cyclization to pyrrole 5; simple tautomeric transformation would then give the observed product. Mannich reaction of 6 with formaldehyde and morpholine gives the tranquilizer molindone (7).

See also[edit]


  1. ^ "molindone". F.A. Davis Company. 
  2. ^ Aparasu RR, Jano E, Johnson ML, Chen H (October 2008). "Hospitalization risk associated with typical and atypical antipsychotic use in community-dwelling elderly patients". Am J Geriatr Pharmacother 6 (4): 198–204. doi:10.1016/j.amjopharm.2008.10.003. PMID 19028375. 
  3. ^ a b Bagnall A, Fenton M, Kleijnen J, Lewis R (2007). Bagnall, Anne-Marie, ed. "Molindone for schizophrenia and severe mental illness". Cochrane Database Syst Rev (1): CD002083. doi:10.1002/14651858.CD002083.pub2. PMID 17253473. 
  4. ^
  5. ^ Allison DB, Mentore JL, Heo M, et al. (1999). "Antipsychotic-induced weight gain: a comprehensive research synthesis". Am J Psychiatry 156 (11): 1686–96. PMID 10553730.  Free full text