Chemical Component Summary

FormulaC19 H24 N4 O2
Molecular Weight340.42
Isomeric SMILESNC(=N)c1ccc(OCCCCCOc2ccc(cc2)C(N)=N)cc1

Chemical Details

Formal Charge0
Atom Count49
Chiral Atom Count0
Chiral Atomsn/a
Bond Count50
Aromatic Bond Count12
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB00738 Different stereochemistry
DescriptionAntiprotozoal agent effective in trypanosomiasis, leishmaniasis, and some fungal infections; used in treatment of pneumocystis pneumonia in HIV-infected patients. It may cause diabetes mellitus, central nervous system damage, and other toxic effects. [PubChem]
  • 1,5-Bis(4-amidinophenoxy)pentane
  • 4,4'-(1,5-Pentanediylbis(oxy))bis-benzenecarboximidamide
  • 4,4'-(Pentamethylenedioxy)dibenzamidine
  • 4,4'-Diamidinodiphenoxypentane
  • P,P'-(pentamethylenedioxy)dibenzamidine
  • Pentamidine gluconate
  • Pentamidine Isethionate
  • Pentamidine mesylate
Brand Names
  • Nebupent
  • Pentacarinat 300 Inj Pws 300mg/vial
  • Pentam 300
  • Pentamidine Isethionate Inj 300mg/vial BP
  • Pe
Affected OrganismPneumocystis carinii
IndicationFor the treatment of pneumonia due to <i>Pneumocystis carinii</i>.
PharmacologyPentamidine is an antiprotozoal agent. It is an aromatic diamidine, and is known to have activity against <i>Pneumocystis carinii</i>. The exact nature of its antiprotozoal action is unknown. <i>in vitro</i> studies with mammalian tissues and the protozoan <i>Crithidia oncopelti</i> indicate that the drug interferes with nuclear metabolism producing inhibition of the synthesis of DNA, RNA, phospholipids and proteins. Little is known about the drug's pharmacokinetics. The medication is also useful in Leishmaniasis and in prophylaxis against sleeping sickness caused by <i>Trypanosoma brucei gambiense</i>. Hydration before treatment lessens the incidence and severity of side effects, which include liver or kidney dysfunction, hypertension, hypotension, hypoglycemia, hypocalemia, leukopenia, thrombcytopenia, anemia, and allergic reaction. It is generally well-tolerated.
Mechanism of actionThe mode of action of pentamidine is not fully understood. It is thought that the drug interferes with nuclear metabolism producing inhibition of the synthesis of DNA, RNA, phospholipids, and proteins.
Route of administration
  • Intramuscular; Intravenous
  • Intramuscular; Intravenous; Respiratory (inhalation)
  • Respiratory (inhalation)
  • Agents Against Leishmaniasis and Trypanosomiasis
  • Amidines
  • Anti-Infective Agents
  • Antifungal Agents
  • Antiparasitic Agents
CAS number100-33-4

Drug Targets

NameSequence SearchPharmacological ActionActions
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682