Ondansetron: A Selective 5‐HT3Receptor Antagonist and Its Applications in CNS‐Related Disorders
Open accessAbstract
Ondansetron is a selective 5‐hydroxytryptamine3 (5‐HT 3) receptor antagonist that has been introduced to clinical practice as an antiemetic for cancer treatment‐induced and anesthesia‐related nausea and vomiting. Its use under these circumstances is both prophylactic and therapeutic. It has a superior efficacy, safety and pharmacoeconomic profile compared with other groups of antiemetics, namely antidopaminergics, antihistamines and anticholinergics. However, its place in the management of anticipatory and delayed vomiting in cancer treatment and as a rescue antiemetic in surgical patients needs to be further explored. Furthermore, recent animal and human research also reflects its possible novel application in the treatment of other disease states, such as alcoholism, cocaine addiction, opioid withdrawal syndrome, anxiety disorders, gastrointestinal motility disorders, Tourette's syndrome and pruritus. This review revisits the widespread physiological and pathological effects of 5‐HT and discusses both the basic science literature and the clinical developments responsible for the conventional and novel uses of ondansetron. In addition, new discoveries relating to the effects of ondansetron on other receptors/channels and their possible therapeutic applications are presented.
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Single high doses of ondansetron reduce activation in the insula, precentral and postcentral gyri, and cingulate cortex.
“Single high doses of ondansetron, a 5-HT3 receptor antagonist FDA approved for severe nausea and vomiting [104], reduce activation in the insula, precentral and postcentral gyri, and cingulate cortex [105].”
From Toward a neurocircuit-based taxonomy to guide treatment of obsessive-compulsive disorder (2021) · cites this paper as [104]
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Cites
A review of central 5-HT receptors and their function
Barnes, N. M., & Sharp, T. (1999) · Neuropharmacology · doi:10.1016/s0028-3908(99)00010-6 · Cited by 3,150 · see citing works
International Union of Pharmacology classification of receptors for 5-hydroxytryptamine (Serotonin).
Hoyer, D., Clarke, D. E., Fozard, J. R., Hartig, P. R., Martin, G. R., Mylecharane, E. J., Saxena, P. R., & Humphrey, P. P. A. (1994) · Pharmacological Reviews · doi:10.1016/s0031-6997(25)06783-3 · Cited by 2,997 · see citing works
Proposals for the classification and nomenclature of functional receptors for 5-hydroxytryptamine
Bradley, P. B., Engel, G., Feniuk, W., Fozard, J. R., Humphrey, P. P. A., Middlemiss, D. N., Mylecharane, E. J., Richardson, B. P., & Saxena, P. R. (1986) · Neuropharmacology · doi:10.1016/0028-3908(86)90207-8 · Cited by 1,259 · see citing works
Animal Models of Alcoholism: Neurobiology of High Alcohol-Drinking Behavior in Rodents
McBride, W. J. H., & Li, T. (1998) · Critical Reviews in Neurobiology · doi:10.1615/critrevneurobiol.v12.i4.40 · Cited by 618 · see citing works
Williams Textbook of Endocrinology
Stoffer, S. S. (1992) · JAMA · doi:10.1001/jama.1992.03490110109043 · Cited by 606 · see citing works
Prevention and Treatment of Postoperative Nausea and Vomiting
Kovac, A. L. (2000) · Drugs · doi:10.2165/00003495-200059020-00005 · Cited by 557 · see citing works
The concept of selectivity in 5-HT receptor research
van Wijngaarden, I., Tulp, M. T. M., & Soudijn, W. (1990) · European Journal of Pharmacology Molecular Pharmacology · doi:10.1016/0922-4106(90)90190-9 · Cited by 423 · see citing works
Ligand-gated ion channels in the brain: The amino acid receptor superfamily
Betz, H. (1990) · Neuron · doi:10.1016/0896-6273(90)90077-s · Cited by 405 · see citing works
Marty, M. E., Pouillart, P., Scholl, S., Droz, J. P., Azab, M. A. E., Brion, N., Pujade-Lauraine, É., Paule, B., Paes, D., & Bons, J. (1990) · New England Journal of Medicine · doi:10.1056/nejm199003223221205 · Cited by 404 · see citing works
Pharmacological properties of GR38032F, a novel antagonist at 5‐HT3 receptors
Butler, A., Hill, J. M., Ireland, S. J., Jordan, C., & Tyers, M. B. (1988) · British Journal of Pharmacology · doi:10.1111/j.1476-5381.1988.tb11542.x · Cited by 374 · see citing works
Clarke, R. S. J. (1984) · British Journal of Anaesthesia · doi:10.1093/bja/56.1.19 · Cited by 336 · see citing works
Serotonin (5-Hydroxytryptamine)
Page, I. H. (1954) · Physiological Reviews · doi:10.1152/physrev.1954.34.3.563 · Cited by 297 · see citing works
DCS (1999) · American Journal of Health-System Pharmacy · doi:10.1093/ajhp/56.8.729 · Cited by 285 · see citing works
5-HT3 Receptor Antagonists for the Prevention of Chemotherapy-Induced Nausea and Vomiting
Gregory, R. E., & Ettinger, D. S. (1998) · Drugs · doi:10.2165/00003495-199855020-00002 · Cited by 266 · see citing works
Risk factors for postoperative nausea and vomiting
Kenny, G. N. C. (1994) · Anaesthesia · doi:10.1111/j.1365-2044.1994.tb03576.x · Cited by 251 · see citing works
The Cost-effective Management of Postoperative Nausea and Vomiting
Watcha, M. F. (2000) · Anesthesiology · doi:10.1097/00000542-200004000-00007 · Cited by 185 · see citing works
5-HT3 receptors and the neural actions of alcohols: an increasingly exciting topic
Lovinger, D. M. (1999) · Neurochemistry International · doi:10.1016/s0197-0186(99)00054-6 · Cited by 182 · see citing works
Wilde, M. I., & Markham, A. (1996) · Drugs · doi:10.2165/00003495-199652050-00010 · Cited by 182 · see citing works
Clinical Pharmacy and Therapeutics
Siskin, S. B. (1975) · American Journal of Health-System Pharmacy · doi:10.1093/ajhp/32.12.1266 · Cited by 177 · see citing works
Neuropharmacological treatments for alcoholism: scientific basis and clinical findings
Johnson, B. A., & Ait‐Daoud, N. (2000) · Psychopharmacology · doi:10.1007/s002130000371 · Cited by 172 · see citing works
Tramèr, M. R., Moore, R. A., Reynolds, D. J., & McQuay, H. J. (1997) · BMJ · doi:10.1136/bmj.314.7087.1088 · Cited by 164 · see citing works
Pharmacology of neuromuscular blocking drugs
Appiah-Ankam, J., & Hunter, J. M. (2004) · Continuing Education in Anaesthesia Critical Care & Pain · doi:10.1093/bjaceaccp/mkh002 · Cited by 137 · see citing works
Yeh, H.-M., Chen, L.-K., Lin, C.-J., Chan, W.-H., Chen, Y., Lin, C.-S., Sun, W., Wang, M., & Tsai, S. (2000) · Anesthesia & Analgesia · doi:10.1097/00000539-200007000-00032 · Cited by 130 · see citing works
Antiemetic properties of the 5HT3-receptor antagonist, gr38032f
Stables, R., Andrews, P. L. R., Bailey, H. E., Costall, B., Gunning, S. J., Hawthorn, J., Naylor, R. J., & Tyers, M. B. (1987) · Cancer Treatment Reviews · doi:10.1016/0305-7372(87)90026-0 · Cited by 124 · see citing works
Ondansetron Is Effective to Treat Spinal or Epidural Morphine-induced Pruritus
Borgeat, A., & Stirnemann, H.-R. (1999) · Anesthesiology · doi:10.1097/00000542-199902000-00017 · Cited by 118 · see citing works
Müller, C., Pongratz, S., Pidlich, J., Penner, E., Kaider, A., SCHEMPER, M., Raderer, M., Scheithauer, W., & Ferenci, P. (1998) · European Journal of Gastroenterology & Hepatology · doi:10.1097/00042737-199810000-00010 · Cited by 118 · see citing works
Pharmacological Evaluation of a Modified Open-Field Test Sensitive to Anxiolytic Drugs
Rex, A., Voigt, J., Voits, M., & Fink, H. (1998) · Pharmacology Biochemistry and Behavior · doi:10.1016/s0091-3057(97)00461-9 · Cited by 107 · see citing works
The physiology and pharmacology of postoperative nausea and vomiting
Naylor, R. J., & INALL, F. C. (1994) · Anaesthesia · doi:10.1111/j.1365-2044.1994.tb03575.x · Cited by 101 · see citing works
Fabling, J. M., Gan, T. J., El-Moalem, H. E., et al. (2000) · Anesthesia & Analgesia · doi:10.1097/00000539-200008000-00023 · Cited by 99 · see citing works
Schreiber, R. D., Melon, C., & Vry, J. D. (1998) · Psychopharmacology · doi:10.1007/s002130050526 · Cited by 96 · see citing works
Maxton, D. G., Morris, J. A., & Whorwell, P. J. (1996) · Alimentary Pharmacology & Therapeutics · doi:10.1046/j.1365-2036.1996.30172000.x · Cited by 96 · see citing works
Goldberg, P. A., Kamm, M. A., Setti-Carraro, P., van der Sijp, J. R. M., & Roth, C. (2009) · Digestion · doi:10.1159/000201377 · Cited by 95 · see citing works
Ondansetron therapy for uremic pruritus in hemodialysis patients
Ashmore, S. D., Jones, C. H., Newstead, C. G., et al. (2000) · American Journal of Kidney Diseases · doi:10.1016/s0272-6386(00)70251-4 · Cited by 93 · see citing works
Ondansetron Exhibits the Properties of a Local Anesthetic
Ye, J. H., Mui, W. C., Ren, J., et al. (1997) · Anesthesia & Analgesia · doi:10.1097/00000539-199711000-00029 · Cited by 91 · see citing works
Self-citationPriestman, T. J., Roberts, J. T., Lucraft, H. H., et al. (1990) · Clinical Oncology · doi:10.1016/s0936-6555(05)80790-3 · Cited by 91 · see citing works
Manullang, T. R., Viscomi, C. M., & Pace, N. L. (2000) · Anesthesia & Analgesia · doi:10.1097/00000539-200005000-00030 · Cited by 90 · see citing works
The Role of 5-HT in Postoperative Nausea and Vomiting
Bunce, K. T., & Tyers, M. B. (1992) · British Journal of Anaesthesia · doi:10.1093/bja/69.supplement_1.60s · Cited by 90 · see citing works
Sirota, P., Mosheva, T., Shabtai, H., Giladi, N., & Korczyn, A. D. (2000) · American Journal of Psychiatry · doi:10.1176/appi.ajp.157.2.287 · Cited by 81 · see citing works
Management of opioid-induced pruritus: a role for 5-HT3 antagonists?
Kyriakides, K., Hussain, S., & Hobbs, G. J. (1999) · British Journal of Anaesthesia · doi:10.1093/bja/82.3.439 · Cited by 79 · see citing works
Cost‐effectiveness of ondansetron for postoperative nausea and vomiting
Tramèr, M. R., Phillips, C. J., Reynolds, D. J., McQuay, H. J., & Moore, R. A. (1999) · Anaesthesia · doi:10.1046/j.1365-2044.1999.00704.x · Cited by 75 · see citing works
Murphy, & Carmichael (2000) · Clinical and Experimental Dermatology · doi:10.1046/j.1365-2230.2000.00587.x · Cited by 75 · see citing works
Rajeeva, V., Bhardwaj, N., Batra, Y. K., et al. (1999) · Canadian Journal of Anesthesia/Journal canadien d anesthésie · doi:10.1007/bf03012512 · Cited by 74 · see citing works
5HT Antagonists Attenuate MK801-Impaired Radial Arm Maze Performance in Rats
Boast, C. A., Bartolomeo, A. C., Morris, H., & Moyer, J. A. (1999) · Neurobiology of Learning and Memory · doi:10.1006/nlme.1998.3886 · Cited by 72 · see citing works
King, G., Xiong, Z. Z., Douglas, S., & Ellinwood, E. H. (2000) · European Journal of Pharmacology · doi:10.1016/s0014-2999(99)00926-7 · Cited by 72 · see citing works
Evolving Concepts of the Pathogenesis and Treatment of the Pruritus of Cholestasis
Jones, E. A., & Bergasa, N. V. (2000) · Canadian Journal of Gastroenterology · doi:10.1155/2000/747495 · Cited by 70 · see citing works
5-HT 3 Antagonists in Postoperative Nausea and Vomiting
Russell, D. I., & Kenny, G. N. C. (1992) · British Journal of Anaesthesia · doi:10.1093/bja/69.supplement_1.63s · Cited by 69 · see citing works
Andrews, P. L. R., & Hawthorn, J. (1987) · Neuropharmacology · doi:10.1016/0028-3908(87)90100-6 · Cited by 62 · see citing works
Sniadach, M. S., & Alberts, M. S. (1997) · Anesthesia & Analgesia · doi:10.1097/00000539-199710000-00015 · Cited by 58 · see citing works
King, G. R., Xiong, Z. Z., & Ellinwood, E. H. (1997) · Psychopharmacology · doi:10.1007/s002130050224 · Cited by 54 · see citing works
5-HT3 receptor antagonists: Differences and similarities
Roila, F., Ballatori, E., Tonato, M., & Favero, A. D. (1997) · European Journal of Cancer · doi:10.1016/s0959-8049(97)00003-8 · Cited by 51 · see citing works
Effects of 5-HT3 receptor antagonists on binding and function of mouse and human GABAA receptors
Klein, R. L., Sanna, E., McQuilkin, S. J., et al. (1994) · European Journal of Pharmacology Molecular Pharmacology · doi:10.1016/0922-4106(94)90194-5 · Cited by 46 · see citing works
Intravenous ondansetron for the control of opioid-induced nausea and vomiting
Sussman, G., Shurman, J., Creed, M. R., Larsen, L. S., Ferrer-Brechner, T., Noll, D. R., Allegra, J. R., Montgomery, R., Schreck, D. M., Grafstein, E., et al. (1999) · Clinical Therapeutics · doi:10.1016/s0149-2918(00)80024-7 · Cited by 41 · see citing works
A Controlled Trial of Ondansetron, a 5-HT3 Antagonist, in Benzodiazepine Discontinuation
Romach, M. K., Kaplan, H. L., Busto, U. E., Somer, G. R., & Sellers, E. M. (1998) · Journal of Clinical Psychopharmacology · doi:10.1097/00004714-199804000-00004 · Cited by 40 · see citing works
Serotonin receptor physiology: relation to emesis.
Hasler, W. L. (1999) · PubMed · Cited by 40 · see citing works
Johnson, B., Roache, J., Javors, M. A., DiClemente, C. C., Cloninger, C., Prihoda, T. J., Bordnick, P. S., Ait-Daoud, N., & Hensler, J. (2000) · Journal of the American Medical Association (JAMA) · doi:10.1001/jama.284.8.963 · Cited by 39 · see citing works
Chung, F. F. (1999) · European Journal of Anaesthesiology · doi:10.1046/j.1365-2346.1999.00547.x · Cited by 37 · see citing works
Psychosis: impact on the patient and family.
Melamed, E., Friedberg, G., & Zoldan, J. (1999) · PubMed · Cited by 36 · see citing works
Ondansetron treatment in patients with Tourette??s syndrome
Toren, P., Laor, N., Cohen, D. J., Wolmer, L., & Weizman, A. (1999) · International Clinical Psychopharmacology · doi:10.1097/00004850-199911000-00008 · Cited by 35 · see citing works
Acute Myocardial Ischemia after Administration of Ondansetron Hydrochloride
Bosek, V., Hu, P., & Robinson, L. A. (2000) · Anesthesiology · doi:10.1097/00000542-200003000-00040 · Cited by 35 · see citing works
Effects of ondansetron administration on opioid withdrawal syndrome observed in rats
Pinelli, A., Trivulzio, S., & TOMASONI, L. (1997) · European Journal of Pharmacology · doi:10.1016/s0014-2999(97)01349-6 · Cited by 35 · see citing works
Emesis in Anti-Cancer Therapy. Mechanisms and Treatment
Martín, M. (1993) · British Journal of Cancer · doi:10.1038/bjc.1993.436 · Cited by 34 · see citing works
McCann, U. (1997) · Neuropsychopharmacology · doi:10.1016/s0893-133x(97)00085-7 · Cited by 32 · see citing works
Broocks, A., Briggs, N. C., Pigott, T. A., Hill, J., Canter, S. K., Tolliver, T. J., Baldemore, D., & Murphy, D. (1997) · Psychopharmacology · doi:10.1007/s002130050215 · Cited by 31 · see citing works
Inhibitory Effect of Ondansetron on Glycine Response of Dissociated Rat Hippocampal Neurons
Ye, J. H., Schaefer, R., Wu, W. H., et al. (1999) · Journal of Pharmacology and Experimental Therapeutics · doi:10.1016/s0022-3565(24)34873-6 · Cited by 31 · see citing works
Self-citation5-HT3-receptor antagonists: a review of pharmacology and clinical efficacy.
Cunningham, R. S. (1997) · PubMed · Cited by 29 · see citing works
Effects of ondansetron pretreatment on acute responses to ethanol in social drinkers
Doty, P., Zacny, J. P., & de Wit, H. (1994) · Behavioural Pharmacology · doi:10.1097/00008877-199408000-00007 · Cited by 28 · see citing works
Mathew, R. J., & Wilson, W. H. (1991) · Psychiatry Research Neuroimaging · doi:10.1016/0925-4927(91)90004-a · Cited by 24 · see citing works
Ondansetron modulates GABAA current of rat central nervous system neurons
Ye, J. H., Hunt, T. E., Wu, W.-H., et al. (1997) · European Journal of Pharmacology · doi:10.1016/s0014-2999(97)01279-x · Cited by 22 · see citing works
Self-citationAntianxiety profile of ondansetron, a selective 5-HT3 antagonist, in a novel animal model.
Roychoudhury, M., & Sk, K. (1997) · PubMed · Cited by 20 · see citing works
Lang, A. E. (1999) · Neurology · doi:10.1212/wnl.52.1.14 · Cited by 19 · see citing works
Medications to treat alcoholism.
Johnson, B. A., & Ait‐Daoud, N. (1999) · PubMed Central · Cited by 17 · see citing works
Chung, F. F., Lane, R., Spraggs, C. F., et al. (1999) · European Journal of Anaesthesiology · doi:10.1097/00003643-199910000-00003 · Cited by 16 · see citing works
Perez, E. A., Tiemeier, T., & Solberg, L. A. (1999) · Supportive Care in Cancer · doi:10.1007/s005200050302 · Cited by 15 · see citing works
Muscle relaxants in anaesthesia
Harper, N. J. N., & Pollard, B. J. (1995) · Edward Arnold eBooks · Cited by 9 · see citing works
Level of Punishment Determines Anticonflict Activity of Ondansetron in Pigeons
Castejon, A. M., & Cubeddu, L. X. (1998) · Pharmacology Biochemistry and Behavior · doi:10.1016/s0091-3057(98)00131-2 · Cited by 3 · see citing works
Flagged first, then by citations
Research works printed but not linked: 5
- Bock M, Sinner B, Gottlicher M, Martin E, Motsch J. Dolasetron prevents postanesthetic shivering. Anes- thesiology 1999;91:A1184.
- Costall B, Domeney AM, Gunning SJ, Naylor RJ, Tattershall FD, Tyers MB. GR38032F, a novel inhibitor of cisplatin-induced emesis in the ferret. Br J Pharmacol 1988;94:397-412. CNS Drug Reviews, Vol. 7, No. 2, 2001 ONDANSETRON 211 15273458, 2001, 2, Downloaded from https://onlinelibrary.wiley.com/doi/10.1111/j.1527-3458.2001.tb00195.x by Test, Wiley Online Library on [13/01/2024]. See the Terms and Conditions (https://onlinelibrary.wiley.com/terms-and-conditions) on Wiley Online Library for rules of use; OA articles are governed by the applicable Creative Commons License · DOI
- Murphy M, Carmichael AJ. Renal itch. Clin Exp Dermatol 2000;25:103-106.
- Roberts LJ, Oates JA. Disorders of vasodilator hormones: The carcinoid syndrome and mastocytosis. In: Wilson JD, ed. Williams text-book of endocrinology. Philadelphia, PA: W. B. Saunders Company, 1992:1619-1625.
- Wilde MI, Markham A. Ondansetron. A review of its pharmacology and preliminary clinical findings in novel applications. Drugs 1996;52:773-794.
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- Authors
- Ye, J., Ponnudurai, R., & Schaefer, R.
- Affiliations
- Rutgers New Jersey Medical School (US)
- Venue
- CNS Drug Reviews
- Publisher
- Wiley
- Published
- 2001-06
- Volume
- 7
- Issue
- 2
- Pages
- 199-213
- ISSN
- 1080-563X (ISSN-L)
- 1527-3458
- PMC
- PMC6741689
- OpenAlex
- W2067758452
- Cited by
- 162
- References
- 75
- Citations by year
- 2026: 3 · 2025: 11 · 2024: 10 · 2023: 11 · 2022: 13 · 2021: 9 · 2020: 4 · 2019: 5 · 2018: 5 · 2017: 4 · 2016: 11 · 2015: 9 · 2014: 9 · 2013: 12 · 2012: 5
- FWCI
- 1.03
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- CNS Drug Reviews (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institute on Alcohol Abuse and Alcoholism (AA11989, R01AA011989)
- Topics
- Health Sciences › Medicine › Surgery › Nausea and vomiting management
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
- Keywords
- ondansetron, 5-HT3 receptor antagonists, serotonin, antiemetics, chemotherapy-induced nausea and vomiting, postoperative nausea and vomiting, alcoholism, cocaine dependence, opioid withdrawal, anxiety disorders, gastrointestinal motility disorders, Tourette syndrome, pruritus, off-label drug use, rescue antiemetics
- MeSH terms
- Animals, Colonic Diseases, Functional, Humans, Ion Channels, Nausea, Receptors, Serotonin, Serotonin Antagonists, Vomiting, Ondansetron
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