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Systematic (IUPAC) name
CAS number 153168-05-09
ATC code J05AX06
PubChem 1684
Chemical data
Formula C18H18F3N3O3 
Mol. mass 381.35 g/mol
SMILES search in eMolecules, PubChem
Pharmacokinetic data
Bioavailability 70% (oral)
Protein binding >99%
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.


Legal status
Routes Oral, intranasal

Pleconaril is an antiviral drug being developed by Schering-Plough for prevention of asthma exacerbations and common cold symptoms in asthmatic subjects exposed to picornavirus respiratory infections.[1] Although the formulation used by Schering-Plough is a nasal spray, pleconaril is orally bioavailable, and is active against viruses in the Picornaviridae family, including Enterovirus[2] and Rhinovirus.[3]


Pleconaril was originally developed by Sanofi-Aventis, and licensed to ViroPharma in 1997. ViroPharma developed it further, and submitted a New Drug Application to the United States Food and Drug Administration (FDA) in 2001. The application was rejected, and ViroPharma re-licensed it to Schering-Plough in 2003. As of 2007, it is in Phase II clinical trials.[1]

Mechanism of action

Pleconaril binds to a hydrophobic pocket in VP1, the major protein which comprises the capsid (the outer "shell") of picornaviruses. In enteroviruses, this prevents the virus from exposing its RNA, and in rhinoviruses it also prevents the virus from attaching itself to the host cell.[4]


  1. ^ a b Effects of Pleconaril Nasal Spray on Common Cold Symptoms and Asthma Exacerbations Following Rhinovirus Exposure (Study P04295AM2). U.S. National Institutes of Health (March 2007). Retrieved on 2007-04-10.
  2. ^ Pevear D, Tull T, Seipel M, Groarke J (1999). "Activity of pleconaril against enteroviruses". Antimicrob Agents Chemother 43 (9): 2109–15. PMID 10471549.
  3. ^ Ronald B. Turner, J. Owen Hendley (2005). "Virucidal hand treatments for prevention of rhinovirus infection". J Antimicrob Chemother 56 (5): 805-807. PMID 16159927.
  4. ^ Florea N, Maglio D, Nicolau D (2003). "Pleconaril, a novel antipicornaviral agent". Pharmacotherapy 23 (3): 339–48. PMID 12627933. Free full text with registration
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Pleconaril". A list of authors is available in Wikipedia.
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