Triamcinolone acetonide

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Triamcinolone acetonide
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Clinical data
Trade namesKenalog, Nasacort, Xipere, others
AHFS/Drugs.comMonograph
MedlinePlusa601124
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Pregnancy
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  • AU: B3/ A
Routes of
administration		Topical, joint injection, nasal
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Legal status
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Pharmacokinetic data
MetabolismLiver
ExcretionUrine (75%) and feces (25%)
Identifiers
  • (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS)-4b-fluoro-6b-glycoloyl-5-hydroxy-4a,6a,8,8-tetramethyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one
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Chemical and physical data
FormulaC24H31FO6
Molar mass434.504 g·mol−1
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Melting point290 to 294 °C (554 to 561 °F)
  • C[C@]12C[C@@H]([C@]3([C@H]([C@@H]1C[C@@H]4[C@]2(OC(O4)(C)C)C(=O)CO)CCC5=CC(=O)C=C[C@@]53C)F)O
  • InChI=1S/C24H31FO6/c1-20(2)30-19-10-16-15-6-5-13-9-14(27)7-8-21(13,3)23(15,25)17(28)11-22(16,4)24(19,31-20)18(29)12-26/h7-9,15-17,19,26,28H,5-6,10-12H2,1-4H3/t15-,16-,17-,19+,21-,22-,23-,24+/m0/s1 checkY
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Data page
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Triamcinolone acetonide, sold under the brand name Kenalog among others, is a synthetic corticosteroid medication used topically to treat various skin conditions,[12] to relieve the discomfort of mouth sores, and by injection into joints to treat various joint conditions. It is also injected into lesions to treat inflammation in some parts of the body, particularly the skin. In nasal spray form, it is used to treat allergic rhinitis. It is used for the treatment of macular edema associated with uveitis.[10] It is a more potent derivative of triamcinolone, and is about eight times as potent as prednisone.[13]

Most forms of triamcinolone acetonide are prescription drugs. In 2014, the U.S. Food and Drug Administration (FDA) made triamcinolone acetonide an over-the-counter drug in the United States in nasal spray form under the brand name Nasacort.[13] It is available as a generic medication.[14]

Medical uses

Triamcinolone acetonide as an intra-articular injectable has been used to treat a variety of musculoskeletal conditions. When applied to the skin as a topical ointment, it is used to mitigate blistering from poison ivy, oak, and sumac.[citation needed] When combined with nystatin, it is used to treat skin infections with discomfort from fungus, though it should not be used on the eyes.[15] It provides relatively immediate relief and is used before using oral prednisone. Oral and dental paste preparations are used for treating aphthous ulcers.

As an intravitreal injection, triamcinolone acetonide has been used to treat various eye diseases and has been found useful in reducing macular edema.[16] Drug trials have found it to be as efficient as anti-VEGF drugs in eyes with artificial lenses over a two-year period. A systematic review did not find any evidence of any benefit in preventing vision loss in eyes treated with triamcinolone acetonide over placebo, for patients with age-related macular degeneration.[17]

Triamcinolone acetonide is also administered via intralesional injection in the treatment of hypertrophic and keloid scars.[18][19]

Contraindications

Evidence suggests that usage of triamcinolone acetonide or other steroids to treat macular edema increases the risk of increasing intraocular pressure in patients.[20]

Pharmacology

Pharmacodynamics

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Triamcinolone acetonide is a corticosteroid. It is specifically a glucocorticoid, or an agonist of the glucocorticoid receptor, that is about five times as potent as cortisol. It has very little mineralocorticoid effects.[21] The affinities of triamcinolone acetonide for the androgen and estrogen receptors are both <0.1% (relative to testosterone and estradiol).[22] However, triamcinolone acetonide has 15% of the affinity of progesterone for the progesterone receptor.[22] In relation to this, triamcinolone acetonide can produce endocrine side effects like ovulation inhibition and menstrual irregularities.[23][24][25]

Chemistry

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Triamcinolone acetonide, also known as 9α-fluoro-16α-hydroxyprednisolone 16α,17α-acetonide or as 9α-fluoro-11β,16α-17α,21-tetrahydroxypregna-1,4-diene-3,20-dione cyclic 16,17-acetal with acetone, is a synthetic halogenated cyclic ketal pregnane corticosteroid.[26] It is the C16α,17α acetonide of triamcinolone.[26]

Veterinary use

Triamcinolone acetonide is also used in veterinary medicine as an ingredient in topical ointments and in topical sprays for control of pruritus in dogs.[27]

It is used as a preinductor and/or inductor of birth in cows. It was also used in the horse racing industry, but it is now a banned substance if found in a horse's system on race day.[28]

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."KENALOG IN ORABASE triamcinolone acetonide". Australian Register of Therapeutic Goods (ARTG). Australian Government. ARTG ID 19205.
  2. ^ Page Module:Citation/CS1/styles.css has no content."KENACORT A10 triamcinolone acetonide". Australian Register of Therapeutic Goods (ARTG).
  3. ^ Page Module:Citation/CS1/styles.css has no content."NASACORT AQ Triamcinolone acetonide". Annual charge exemptions dataset. Department of Health and Aged Care, Australian Government.
  4. ^ Page Module:Citation/CS1/styles.css has no content."Aristocort C Product information". Health Canada. 25 April 2012. Retrieved 23 December 2022.
  5. ^ Page Module:Citation/CS1/styles.css has no content."Nasacort Allergy 24HR Product information". Health Canada. 25 April 2012. Retrieved 23 December 2022.
  6. ^ Page Module:Citation/CS1/styles.css has no content."Adcortyl Intra-Articular/Intradermal Injection 10mg/ml - Summary of Product Characteristics (SmPC)". (emc). 8 October 2021. Retrieved 23 December 2022.
  7. ^ Page Module:Citation/CS1/styles.css has no content."Kenalog Intra-articular / Intramuscular Injection - Summary of Product Characteristics (SmPC)". (emc). 8 April 2022. Retrieved 23 December 2022.
  8. ^ Page Module:Citation/CS1/styles.css has no content."Nasacort 55 micrograms/dose, nasal spray, suspension - Summary of Product Characteristics (SmPC)". (emc). 1 November 2021. Retrieved 23 December 2022.
  9. ^ Page Module:Citation/CS1/styles.css has no content."Nasacort Allergy Relief for Adults 55 micrograms/dose, nasal spray, suspension - Summary of Product Characteristics (SmPC)". (emc). 1 November 2021. Archived from the original on 23 December 2022. Retrieved 23 December 2022.
  10. ^ a b Page Module:Citation/CS1/styles.css has no content."Xipere- triamcinolone acetonide injection, suspension". DailyMed. Retrieved 19 December 2021.
  11. ^ Page Module:Citation/CS1/styles.css has no content."Active substance(s): triamcinolone (topical and nasal formulations)" (PDF). List of nationally authorised medicinal products. European Medicines Agency. 8 March 2018.
  12. ^ Page Module:Citation/CS1/styles.css has no content."Triamcinolone Topical". MedlinePlus. Retrieved 12 November 2020.
  13. ^ a b Page Module:Citation/CS1/styles.css has no content."Nasacort Allergy 24HR- triamcinolone acetonide spray, metered". DailyMed. 3 February 2014. Retrieved 12 November 2020.
  14. ^ Page Module:Citation/CS1/styles.css has no content."Competitive Generic Therapy Approvals". U.S. Food and Drug Administration (FDA). 3 March 2023. Archived from the original on 20 February 2020. Retrieved 6 March 2023.
  15. ^ Page Module:Citation/CS1/styles.css has no content."Nystatin And Triamcinolone (Topical Route)". mayoclinic.org. Mayo Foundation for Medical Education and Research. Retrieved 18 May 2016.
  16. ^ Page Module:Citation/CS1/styles.css has no content.Rittiphairoj T, Mir TA, Li T, Virgili G (November 2020). "Intravitreal steroids for macular edema in diabetes". The Cochrane Database of Systematic Reviews. 2020 (11) CD005656. doi:10.1002/14651858.CD005656.pub3. PMC 8095060. PMID 33206392.
  17. ^ Page Module:Citation/CS1/styles.css has no content.Geltzer A, Turalba A, Vedula SS (January 2013). "Surgical implantation of steroids with antiangiogenic characteristics for treating neovascular age-related macular degeneration". The Cochrane Database of Systematic Reviews. 1 (1) CD005022. doi:10.1002/14651858.CD005022.pub3. PMC 4269233. PMID 23440797.
  18. ^ Page Module:Citation/CS1/styles.css has no content."Intralesional Steroid Therapy (Patient Information Leaflets)". British Association of Dermatologists. 2008. Archived from the original on 15 March 2020. Retrieved 15 March 2020.
  19. ^ Page Module:Citation/CS1/styles.css has no content.Griffith BH (September 1966). "The treatment of keloids with triamcinolone acetonide". Plastic and Reconstructive Surgery. 38 (3): 202–208. doi:10.1097/00006534-196609000-00004. PMID 5919603.
  20. ^ Page Module:Citation/CS1/styles.css has no content.Gewaily D, Muthuswamy K, Greenberg PB (September 2015). "Intravitreal steroids versus observation for macular edema secondary to central retinal vein occlusion". The Cochrane Database of Systematic Reviews. 2015 (9) CD007324. doi:10.1002/14651858.CD007324.pub3. PMC 4733851. PMID 26352007.
  21. ^ Page Module:Citation/CS1/styles.css has no content.Dinnendahl V, Fricke U, eds. (2004). Arzneistoff-Profile (in Deutsch). Vol. 10 (19 ed.). Eschborn, Germany: Govi Pharmazeutischer Verlag. Triamcinolon. ISBN 978-3-7741-9846-3.
  22. ^ a b Page Module:Citation/CS1/styles.css has no content.Kavlock RJ, Daston GP (6 December 2012). Drug Toxicity in Embryonic Development II: Advances in Understanding Mechanisms of Birth Defects: Mechanistics Understanding of Human Development Toxicants. Springer Science & Business Media. pp. 437–. ISBN 978-3-642-60447-8.
  23. ^ Page Module:Citation/CS1/styles.css has no content.Brook EM, Hu CH, Kingston KA, Matzkin EG (March 2017). "Corticosteroid Injections: A Review of Sex-Related Side Effects". Orthopedics. 40 (2): e211–e215. doi:10.3928/01477447-20161116-07. PMID 27874912.
  24. ^ Page Module:Citation/CS1/styles.css has no content.Cunningham GR, Goldzieher JW, de la Pena A, Oliver M (January 1978). "The mechanism of ovulation inhibition by triamcinolone acetonide". The Journal of Clinical Endocrinology and Metabolism. 46 (1): 8–14. doi:10.1210/jcem-46-1-8. PMID 376542.
  25. ^ Page Module:Citation/CS1/styles.css has no content.Luzzani F, Gallico L, Glässer A (1982). "In vitro and ex vivo binding to uterine progestin receptors of the rat as a tool to assay progestational activity of glucocorticoids". Methods and Findings in Experimental and Clinical Pharmacology. 4 (4): 237–242. PMID 7121132.
  26. ^ a b Page Module:Citation/CS1/styles.css has no content.Elks J (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 1228–. ISBN 978-1-4757-2085-3.
  27. ^ Genesis (triamcinolone acetonide) Topical Spray Drug information
  28. ^ Champion Hurdle favorite Yanworth failed drug test

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