Jump to content

Nebivolol

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by 65.69.34.2 (talk) at 02:15, 26 July 2012. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

{{Drugbox | Verifiedfields = changed | verifiedrevid = 462258880 | IUPAC_name = 1-(6-fluorochroman-2-yl)-{[2-(6-fluorochroman-2-yl)-2-hydroxy-ethyl]amino}ethanol
OR
2,2'-azanediylbis(1-(6-fluorochroman-2-yl)ethanol)
OR
1-(6-fluoro-3,4-dihydro-2H-1-benzopyran-2-yl)-2-{[2-(6-fluoro-3,4-dihydro-2H-1-benzopyran-2-yl)-2-hydroxyethyl]amino}ethan-1-ol | image = Nebivolol.svg

| tradename = Nebilet, Bystolic | Drugs.com = Monograph | MedlinePlus = a608029 | licence_US = Nebivolol | pregnancy_US = C | legal_UK = POM | legal_US = Rx-only | routes_of_administration = Oral

| protein_bound = 98% | metabolism = Hepatic (CYP2D6-mediated) | elimination_half-life = 10 hours | excretion = Renal and fecal

| CAS_number_Ref =  checkY | CAS_number = 99200-09-6 | ATC_prefix = C07 | ATC_suffix = AB12 | PubChem = 71301 | DrugBank_Ref =  checkY | DrugBank = DB04861 | ChemSpiderID_Ref =  checkY | ChemSpiderID = 64421 | UNII_Ref =  checkY | UNII = 030Y90569U | KEGG_Ref =  checkY | KEGG = D05127 | ChEMBL_Ref =  checkY | ChEMBL = 434394

| C=22 | H=25 | F=2 | N=1 | O=4 | molecular_weight = 405.435 g/mol | smiles = Fc4cc1c(OC(CC1)C(O)CNCC(O)C3Oc2ccc(F)cc2CC3)cc4 | InChI = 1/C22H25F2NO4/c23-15-3-7-19-13(9-15)1-5-21(28-19)17(26)11-25-12-18(27)22-6-2-14-10-16(24)4-8-20(14)29-22/h3-4,7-10,17-18,21-22,25-27H,1-2,5-6,11-12H2 | InChIKey = KOHIRBRYDXPAMZ-UHFFFAOYAH | StdInChI_Ref =  checkY | StdInChI = 1S/C22H25F2NO4/c23-15-3-7-19-13(9-15)1-5-21(28-19)17(26)11-25-12-18(27)22-6-2-14-10-16(24)4-8-20(14)29-22/h3-4,7-10,17-18,21-22,25-27H,1-2,5-6,11-12H2 | StdInChIKey_Ref =  checkY | StdInChIKey = KOHIRBRYDXPAMZ-UHFFFAOYSA-N }} Nebivolol is a β1 receptor blocker with nitric oxide-potentiating vasodilatory effect used in treatment of hypertension and, in Europe, also for left ventricular failure.[1] It is highly cardioselective under certain circumstances.[1]

Pharmacology and biochemistry

β1 Selectivity

Beta blockers help patients with cardiovascular disease by blocking β1 receptors, while many of the side-effects of these medications are caused by their blockade of β2 receptors.[2] For this reason, beta blockers that selectively block β1 receptors (termed cardioselective or β1-selective beta blockers) produce fewer adverse effects (for instance, bronchoconstriction) than those drugs that non-selectively block both β1 and β2 receptors. Nebilovol has been marketed by Micro Labs under the brand name Nebilong; by Forest Laboratories under the name Bystolic; and by Menarini under the names Hypoloc, Lobivon, Nebilet, Nebilox, Nobiten, and Temerit. Micro Labs further ventured into providing a combination with diuretic (hydrochlorothiazide) marketed under the trade name Nebilong-H. In a laboratory experiment conducted on biopsied heart tissue, nebivolol proved to be the most β1-selective of the β-blockers tested, being approximately 3.5 times more β1-selective than bisoprolol.[3] However, the drug's receptor selectivity in humans is more complex and depends on the drug dose and the genetic profile of the patient taking the medication.[4] The drug is highly cardioselective at 5 mg.[5] However, at doses above 10 mg, nebivolol loses its cardioselectivity and blocks both β1 and β2 receptors.[4] (While the recommended starting dose of nebivolol is 5 mg, sufficient control of blood pressure may require doses up to 40 mg).[4] Furthermore, nebivolol is also not cardioselective when taken by patients with a genetic makeup that makes them "poor metabolizers" of nebivolol (and other drugs).[4] As many as 1 in 10 Whites and even more Blacks are poor CYP2D6 metabolizers and therefore might benefit less from nebivolol's cardioselectivity although currently there are no directly comparable studies.[citation needed]

Vasodilator action

Nebivolol is unique as a beta-blocker.[6] Unlike carvedilol, it has a nitric oxide (NO)-potentiating, vasodilatory effect.[7][8] Along with labetalol, celiprolol and carvedilol, it is one of four beta blockers to cause dilation of blood vessels in addition to effects on the heart.[8] However, recent studies question the clinical relevance of this property to Nebivolol's efficacy.[9]

Antihypertensive effect

Nebivolol lowers blood pressure (BP) by reducing peripheral vascular resistance, and significantly increases stroke volume with preservation of cardiac output.[10] The net hemodynamic effect of nebivolol is the result of a balance between the depressant effects of beta-blockade and an action that maintains cardiac output.[11] Antihypertensive responses were significantly higher with nebivolol than with placebo in trials enrolling patient groups considered representative of the U.S. hypertensive population, in Black patients, and in those receiving concurrent treatment with other antihypertensive drugs.[12]

Pharmacology of side-effects

Several studies have suggested that nebivolol has reduced typical beta-blocker-related side effects, such as fatigue, clinical depression, bradycardia, or impotence.[13][14][15] However, according to the FDA[16]

Bystolic is associated with a number of serious risks. Bystolic is contraindicated in patients with severe bradycardia, heart block greater than first degree, cardiogenic shock, decompensated cardiac failure, sick sinus syndrome (unless a permanent pacemaker is in place), severe hepatic impairment (Child-Pugh > B) and in patients who are hypersensitive to any component of the product. Bystolic therapy is also associated with warnings regarding abrupt cessation of therapy, cardiac failure, angina and acute myocardial infarction, bronchospastic diseases, anesthesia and major surgery, diabetes and hypoglycemia, thyrotoxicosis, peripheral vascular disease, non-dihydropyridine calcium channel blockers use, as well as precautions regarding use with CYP2D6 inhibitors, impaired renal and hepatic function, and anaphylactic reactions. Finally, Bystolic is associated with other risks as described in the Adverse Reactions section of its PI. For example, a number of treatment-emergent adverse events with an incidence greater than or equal to 1 percent in Bystolic-treated patients and at a higher frequency than placebo-treated patients were identified in clinical studies, including headache, fatigue, and dizziness.

FDA warning letter about advertising claims

In late August 2008, the FDA issued a Warning Letter to Forest Laboratories citing exaggerated and misleading claims in their sales force's promotional materials, in particular over claims of superiority and novelty of action.[16]

Contraindications

  • Hepatic insufficiency
  • Children
  • Pregnancy
  • Lactation

Adverse drug reactions

History

Mylan Laboratories licensed the U.S. and Canadian rights to nebivolol from Janssen Pharmaceutica N.V. in 2001. Nebivolol is already registered and successfully marketed in more than 50 countries, including the United States where it is marketed under the brand name Bystolic from Mylan Laboratories and Forest Laboratories. Nebivolol is manufactured by Forest Laboratories.

In India, Nebivolol is available as Nebilong 5 mg (Micro Labs), Nebicard-5 (Torrent), Nubeta (Abbott Healthcare Pvt Ltd – India), and Nodon (Cadila Pharmaceuticals). In Greece and Italy, Nebivolol is marketed by Menarini as Lobivon. In the Middle East and in Australia, it is marketed under the name Nebilet, and in Pakistan, it is marketed by Searle Pakistan Limited as Byscard.

References

  1. ^ a b de Boer RA, Voors AA, van Veldhuisen DJ (2007). "Nebivolol: third-generation beta-blockade". Expert Opin Pharmacother. 8 (10): 1539–50. doi:10.1517/14656566.8.10.1539. PMID 17661735. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  2. ^ Tafreshi MJ, Weinacker AB (1999). "Beta-adrenergic-blocking agents in bronchospastic diseases: a therapeutic dilemma". Pharmacotherapy. 19 (8): 974–8. doi:10.1592/phco.19.11.974.31575. PMID 10453968. {{cite journal}}: Unknown parameter |month= ignored (help)
  3. ^ Bundkirchen A, Brixius K, Bölck B, Nguyen Q, Schwinger RH (2003). "Beta 1-adrenoceptor selectivity of nebivolol and bisoprolol. A comparison of [3H]CGP 12.177 and [125I]iodocyanopindolol binding studies". Eur. J. Pharmacol. 460 (1): 19–26. doi:10.1016/S0014-2999(02)02875-3. PMID 12535855. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  4. ^ a b c d "Prescribing information for Bystolic" (PDF). Retrieved 11 June 2009.
  5. ^ Nuttall SL, Routledge HC, Kendall MJ (2003). "A comparison of the beta1-selectivity of three beta1-selective beta-blockers". J Clin Pharm Ther. 28 (3): 179–86. doi:10.1046/j.1365-2710.2003.00477.x. PMID 12795776. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  6. ^ Agabiti Rosei E, Rizzoni D (2007). "Metabolic profile of nebivolol, a beta-adrenoceptor antagonist with unique characteristics". Drugs. 67 (8): 1097–107. doi:10.2165/00003495-200767080-00001. PMID 17521213.
  7. ^ Weiss R (2006). "Nebivolol: a novel beta-blocker with nitric oxide-induced vasodilatation". Vasc Health Risk Manag. 2 (3): 303–8. doi:10.2147/vhrm.2006.2.3.303. PMC 1993984. PMID 17326335.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  8. ^ a b Bakris G (2009). "An in-depth analysis of vasodilation in the management of hypertension: focus on adrenergic blockade". J. Cardiovasc. Pharmacol. 53 (5): 379–87. doi:10.1097/FJC.0b013e31819fd501. PMID 19454898. {{cite journal}}: Unknown parameter |month= ignored (help)
  9. ^ Cite error: The named reference npsradar001 was invoked but never defined (see the help page).
  10. ^ Kamp O, Sieswerda GT, Visser CA (2003). "Comparison of effects on systolic and diastolic left ventricular function of nebivolol versus atenolol in patients with uncomplicated essential hypertension". Am. J. Cardiol. 92 (3): 344–8. doi:10.1016/S0002-9149(03)00645-3. PMID 12888152. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  11. ^ Gielen W, Cleophas TJ, Agrawal R (2006). "Nebivolol: a review of its clinical and pharmacological characteristics". Int J Clin Pharmacol Ther. 44 (8): 344–57. PMID 16961165. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  12. ^ Baldwin CM, Keam SJ. Nebivolol: In the Treatment of Hypertension in the US. Am J Cardiovasc Drugs 2009; 9 (4): 253-260. Link text
  13. ^ Pessina AC (2001). "Metabolic effects and safety profile of nebivolol". J. Cardiovasc. Pharmacol. 38. Suppl 3: S33–5. PMID 11811391. {{cite journal}}: Unknown parameter |month= ignored (help)
  14. ^ Weber MA (2005). "The role of the new beta-blockers in treating cardiovascular disease". Am. J. Hypertens. 18 (12 Pt 2): 169S–176S. doi:10.1016/j.amjhyper.2005.09.009. PMID 16373195. {{cite journal}}: Unknown parameter |month= ignored (help)
  15. ^ Poirier L, Cléroux J, Nadeau A, Lacourcière Y (2001). "Effects of nebivolol and atenolol on insulin sensitivity and haemodynamics in hypertensive patients". J. Hypertens. 19 (8): 1429–35. doi:10.1097/00004872-200108000-00011. PMID 11518851. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  16. ^ a b Thomas Abrams (2008-08-28). "Warning Letter" (PDF). Food and Drug Administration. Retrieved 2008. FDA is not aware of any substantial evidence or substantial clinical experience that demonstrates that Bystolic represents a 'novel' or 'next generation' beta blocker for the treatment of hypertension. Indeed, we are not aware of any well-designed trials comparing Bystolic to other β-blockers. Furthermore, FDA is not aware of any data that would render Bystolic's mechanism of action 'unique.' {{cite web}}: Check date values in: |accessdate= (help)

Nebistar (Lupin Ltd)

Retrieved from "https://en.wikipedia.org/w/index.php?title=Nebivolol&oldid=504204789"