Pentoxifylline

Pentoxifylline
Systematic (IUPAC) name
3,7-Dimethyl-1-(5-oxohexyl)-3,7-dihydro-1H-purine-2,6-dione
Clinical data
Trade names Many names worldwide[1]
AHFS/Drugs.com monograph
MedlinePlus a685027
License data
Pregnancy
category
  • AU: B1
  • US: C (Risk not ruled out)
Routes of
administration		 Oral
Legal status
Legal status
Pharmacokinetic data
Bioavailability 10-30%[2]
Metabolism Hepatic and via erythrocytes
Biological half-life 0.4-0.8 hours (1-1.6 hours for active metabolite)[2]
Excretion Urine (95%), faeces (<4%)[2]
Identifiers
CAS Number 6493-05-6 YesY
ATC code C04AD03 (WHO)
PubChem CID 4740
IUPHAR/BPS 7095
DrugBank DB00806 YesY
ChemSpider 4578 YesY
UNII SD6QCT3TSU YesY
KEGG D00501 YesY
ChEMBL CHEMBL628 YesY
Chemical data
Formula C13H18N4O3
Molar mass 278.31 g/mol
  (verify)

Pentoxifylline (INN, BAN, USAN) or oxpentifylline (AAN)[3] is a drug used to treat muscle pain in people with peripheral artery disease.[4] It is generic and sold under many brand names worldwide.[1]

Medical uses

Its primary use in medicine is in treating the symptoms of muscle pain resulting from peripheral artery disease.[4] This is its only FDA, MHRA and TGA-labelled indication.[3][5][6]

Adverse effects

Dizziness, headache, nausea, vomiting, indigestion and flushing are common side effects. Uncommon and rare side effects include angina, palpitations, hypersensitivity, itchiness, rash, hives, bleeding, hallucinations, arrhythmias, and aseptic meningitis.[2][3][5][6]

Contraindications include intolerance to pentoxifylline or other xanthine derivatives, recent retinal or cerebral haemorrhage, and risk factors for haemorrhage.[2]

Co-administration of pentoxifylline and sodium thiopental may cause death by acute pulmonary edema in rats.[7]

Mechanism

Like other methylated xanthine derivatives, pentoxifylline is a competitive nonselective phosphodiesterase inhibitor[8] which raises intracellular cAMP, activates PKA, inhibits TNF[9][10] and leukotriene [11] synthesis, and reduces inflammation and innate immunity.[11] In addition, pentoxifylline improves red blood cell deformability (known as a haemorrheologic effect), reduces blood viscosity and decreases the potential for platelet aggregation and thrombus formation.[12] Pentoxifylline is also an antagonist at adenosine 2 receptors.[13]

Effect of Pentoxifylline on seizure

In a study, the effect of pentoxifylline as a phosphodiestrase inhibitor was study on the pentylenetetrazol-induced seziure in the wild-type mice. Pentoxifylline in that study reduced the anti-convulsive effect of H-89 and reduced the seizure threshold.[14]

Research

There is some evidence that pentoxifyllinenon can lower the levels of some biomarkers in non-alcoholic steatohepatitis but evidence is insufficient to determine if the drug is safe and effective for this use.[15]

See also

References

  1. 1 2 Drugs.com drugs.com international listings for Pentoxifylline. Page accessed Feb 1, 206
  2. 1 2 3 4 5 "Trental, Pentoxil (pentoxifylline) dosing, indications, interactions, adverse effects, and more". Medscape Reference. WebMD. Retrieved 3 February 2014.
  3. 1 2 3 "PRODUCT INFORMATION TRENTAL® 400" (PDF). TGA eBusiness Services. sanofi-aventis australia pty limited. 25 March 2010. Retrieved 3 February 2014.
  4. 1 2 Salhiyyah K, Senanayake E, Abdel-Hadi M, Booth A, Michaels JA (2012). "Pentoxifylline for intermittent claudication". The Cochrane Database of Systematic Reviews 1: CD005262. doi:10.1002/14651858.CD005262.pub2. PMID 22258961.
  5. 1 2 "PENTOXIFYLLINE tablet, extended release [Apotex Corp.]". DailyMed. Apotex Corp. February 2013. Retrieved 3 February 2014.
  6. 1 2 "Trental 400 - Summary of Product Characteristics (SPC)". electronic Medicines Compendium. Sanofi. 10 October 2013. Retrieved 3 February 2014.
  7. ↑ Pereda J, Gómez-Cambronero L, Alberola A, Fabregat G, Cerdá M, Escobar J, Sabater L, García-de-la-Asunción J, García-de-la-Asuneión J, Viña J, Sastre J (2006). "Co-administration of pentoxifylline and thiopental causes death by acute pulmonary oedema in rats". British Journal of Pharmacology 149 (4): 450–5. doi:10.1038/sj.bjp.0706871. PMC 1978439. PMID 16953192.
  8. ↑ Essayan DM (2001). "Cyclic nucleotide phosphodiesterases". The Journal of Allergy and Clinical Immunology 108 (5): 671–80. doi:10.1067/mai.2001.119555. PMID 11692087.
  9. ↑ Deree J, Martins JO, Melbostad H, Loomis WH, Coimbra R (2008). "Insights into the regulation of TNF-alpha production in human mononuclear cells: the effects of non-specific phosphodiesterase inhibition". Clinics 63 (3): 321–8. doi:10.1590/S1807-59322008000300006. PMC 2664230. PMID 18568240.
  10. ↑ Marques LJ, Zheng L, Poulakis N, Guzman J, Costabel U (1999). "Pentoxifylline inhibits TNF-alpha production from human alveolar macrophages". American Journal of Respiratory and Critical Care Medicine 159 (2): 508–11. doi:10.1164/ajrccm.159.2.9804085. PMID 9927365.
  11. 1 2 Peters-Golden M, Canetti C, Mancuso P, Coffey MJ (2005). "Leukotrienes: underappreciated mediators of innate immune responses". Journal of Immunology 174 (2): 589–94. doi:10.4049/jimmunol.174.2.589. PMID 15634873.
  12. ↑ Ward A, Clissold SP (1987). "Pentoxifylline. A review of its pharmacodynamic and pharmacokinetic properties, and its therapeutic efficacy". Drugs 34 (1): 50–97. doi:10.2165/00003495-198734010-00003. PMID 3308412.
  13. ↑ Rodríguez-Morán M, Guerrero-Romero F (2008). "Efficacy of pentoxifylline in the management of microalbuminuria in patients with diabetes". Current Diabetes Reviews 4 (1): 55–62. doi:10.2174/157339908783502343. PMID 18220696.
  14. ↑ Hosseini-Zare MS, Salehi F, Seyedi SY, Azami K, Ghadiri T, Mobasseri M, Gholizadeh S, Beyer C, Sharifzadeh M (2011). "Effects of pentoxifylline and H-89 on epileptogenic activity of bucladesine in pentylenetetrazol-treated mice". European Journal of Pharmacology 670 (2-3): 464–70. doi:10.1016/j.ejphar.2011.09.026. PMID 21946102.
  15. ↑ Li W, Zheng L, Sheng C, Cheng X, Qing L, Qu S (2011). "Systematic review on the treatment of pentoxifylline in patients with non-alcoholic fatty liver disease". Lipids in Health and Disease 10: 49. doi:10.1186/1476-511X-10-49. PMC 3088890. PMID 21477300.

External links

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