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Methysergide

 
Drug Info: Methysergide

Brand names: Sansert®

Chemical formula:



Last updated: 7/1/2002

Important Disclaimer: The drug information provided here is for educational purposes only. It is intended to supplement, not substitute for, the diagnosis, treatment and advice of a medical professional. This drug information does not cover all possible uses, precautions, side effects and interactions. It should not be construed to indicate that this or any drug is safe for you. Consult your medical professional for guidance before using any prescription or over the counter drugs.

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Veterinary Dictionary: methysergide
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A potent serotonin antagonist.

Wikipedia: Methysergide
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Methysergide
Systematic (IUPAC) name
1-Methyl- d-lysergic acid- (1-hydroxybut- 2-yl) amide
Identifiers
CAS number 361-37-5
ATC code N02CA04
PubChem 9681
DrugBank APRD00463
Chemical data
Formula C21H27N3O2 
Mol. mass 353.458 g/mol
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.

X

Legal status
Routes  ?
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Methysergide (UML-491) is a prescription drug used for prophylaxis of migraine headaches and is sold under the brand names Sansert and Deseril in 2mg dosages.

Contents

Pharmacology

Methysergide interacts with of serotonin (5-HT) receptors. Its therapeutic effect in migraine prophylaxis has been associated with its antagonism at the 5-HT2B receptor.[1] Furthermore, it is an antagonist at the 5-HT2C receptor and at the 5-HT1A receptor.[2][3] It is known to have partial agonist effects on some of the other 5-HT receptors as well.[4]

Uses

Methysergide is used to treat headaches such as migraine and other recurrent throbbing headaches.[5] Methysergide is one of the most effective[6] medications for the prevention of migraine, but not for the treatment of an acute attack.

It is also used in carcinoid syndrome to treat severe diarrhoea.[7]

Side effects

It has a known side effect, retroperitoneal fibrosis[8], which is severe, although uncommon. Other severe but uncommon side effects include pleural fibrosis, and subendocardial fibrosis.

In addition, there is an increased risk of left-sided cardiac valve dysfunction.[6][9]

History

Methysergide was approved by the U.S. Food and Drug Administration (FDA) in 1962.

Novartis withdrew it from the U.S. market after taking over Sandoz, but currently lists it as a product.

Related compounds

Its molecular structure is closely related to that of LSD.

Like LSD, methysergide also produces psychedelic and hallucinogenic effects.

About 4 mg is equal to 25mcg of LSD.[10]

See also

Triptan

References

  1. ^ Schmuck K, Ullmer C, Kalkman HO, Probst A, Lubbert H (May 1996). "Activation of meningeal 5-HT2B receptors: an early step in the generation of migraine headache?". Eur. J. Neurosci. 8 (5): 959–67. PMID 8743744. 
  2. ^ Rang, H. P. (2003). Pharmacology. Edinburgh: Churchill Livingstone. ISBN 0-443-07145-4.  Page 187
  3. ^ Saxena PR, Lawang A (October 1985). "A comparison of cardiovascular and smooth muscle effects of 5-hydroxytryptamine and 5-carboxamidotryptamine, a selective agonist of 5-HT1 receptors". Arch Int Pharmacodyn Ther 277 (2): 235–52. PMID 2933009. 
  4. ^ Colpaert FC, Niemegeers CJ, Janssen PA (October 1979). "In vivo evidence of partial agonist activity exerted by purported 5-hydroxytryptamine antagonists". Eur. J. Pharmacol. 58 (4): 505–9. doi:10.1016/0014-2999(79)90326-1. PMID 510385. 
  5. ^ http://www.patient.co.uk/medicine/Methysergide.htm
  6. ^ a b Joseph T, Tam SK, Kamat BR, Mangion JR (2003). "Successful repair of aortic and mitral incompetence induced by methylsergide maleate: confirmation by intraoperative transesophageal echocardiography". Echocardiography 20 (3): 283–7. doi:10.1046/j.1540-8175.2003.03027.x. PMID 12848667. 
  7. ^ http://www.patient.co.uk/medicine/Methysergide.htm
  8. ^ emedicine.com (2002)
  9. ^ 1997 Mayo Clinic study linking heart disease to Fen Phen Valvular heart disease associated with fenfluramine-phentermine
  10. ^ Abramson HA, Rolo A (September 1965). "Lysergic acid diethylamide (LSD-25). 38. Comparison with action of methysergide and psilocybin on test subjects". J Asthma Res 3 (1): 81–96. doi:10.3109/02770906509106904. PMID 5318626. 

External links


 
 
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Drug Info. Gold Standard. Copyright © 2008 by Gold Standard. All rights reserved.  Read more
Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Methysergide" Read more