Thiocolchicoside

Thiocolchicoside
Clinical data
AHFS/Drugs.comInternational Drug Names
Routes of
administration		Oral, Topical, IM
ATC code
Legal status
Legal status
  • In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailability25%[1]
Elimination half-life5-6 hours[1][2]
Identifiers
  • N-[(7S)-3-(β-D-Glucopyranosyloxy)-1,2-dimethoxy-10-(methylsulfanyl)-9-oxo-5,6,7,9-tetrahydrobenzo[a]heptalen-7-yl]ethanamide
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.009.107 Edit this at Wikidata
Chemical and physical data
FormulaC27H33NO10S
Molar mass563.62 g·mol−1
3D model (JSmol)
  • O=C(N[C@@H]4C1=C\C(=O)C(/SC)=C\C=C1c3c(cc(O[C@@H]2O[C@@H]([C@@H](O)[C@H](O)[C@H]2O)CO)c(OC)c3OC)CC4)C
  • InChI=1S/C27H33NO10S/c1-12(30)28-16-7-5-13-9-18(37-27-24(34)23(33)22(32)19(11-29)38-27)25(35-2)26(36-3)21(13)14-6-8-20(39-4)17(31)10-15(14)16/h6,8-10,16,19,22-24,27,29,32-34H,5,7,11H2,1-4H3,(H,28,30)/t16-,19+,22+,23-,24+,27+/m0/s1 ☒N
  • Key:LEQAKWQJCITZNK-AXHKHJLKSA-N ☒N
 ☒NcheckY (what is this?)  (verify)

Thiocolchicoside (Muscoril, Myoril, Neoflax) is a muscle relaxant with anti-inflammatory and analgesic effects.[3][4][5][6] Its mechanism of action is unknown, but it is believed to be act via antagonism of nicotinic acetylcholine receptors (nAchRs). However, it also appears to be a competitive antagonist of GABAA and glycine receptors.[7][8] As such, it has powerful convulsant activity and should not be used in seizure-prone individuals.[9][10][11]

  1. ^ a b Perucca E, Poitou P, Pifferi G (1995). "Comparative pharmacokinetics and bioavailability of two oral formulations of thiocolchicoside, a GABA-mimetic muscle relaxant drug, in normal volunteers". European Journal of Drug Metabolism and Pharmacokinetics. 20 (4): 301–5. doi:10.1007/bf03190249. PMID 8983937. S2CID 13325496.
  2. ^ Sandouk P, Bouvier d'Yvoire M, Chretien P, Tillement JP, Scherrmann JM (January 1994). "Single-dose bioavailability of oral and intramuscular thiocolchicoside in healthy volunteers". Biopharmaceutics & Drug Disposition. 15 (1): 87–92. doi:10.1002/bdd.2510150108. PMID 8161719. S2CID 6712875.
  3. ^ Tüzün F, Unalan H, Oner N, Ozgüzel H, Kirazli Y, Içağasioğlu A, Kuran B, Tüzün S, Başar G (September 2003). "Multicenter, randomized, double-blinded, placebo-controlled trial of thiocolchicoside in acute low back pain". Joint, Bone, Spine. 70 (5): 356–61. doi:10.1016/S1297-319X(03)00075-7. PMID 14563464.
  4. ^ Ketenci A, Basat H, Esmaeilzadeh S (July 2009). "The efficacy of topical thiocolchicoside (Muscoril) in the treatment of acute cervical myofascial pain syndrome: a single-blind, randomized, prospective, phase IV clinical study". Agri. 21 (3): 95–103. PMID 19780000. Archived from the original on December 15, 2019. Retrieved April 8, 2010.
  5. ^ Soonawalla DF, Joshi N (May 2008). "Efficacy of thiocolchicoside in Indian patients suffering from low back pain associated with muscle spasm". Journal of the Indian Medical Association. 106 (5): 331–5. PMID 18839644.
  6. ^ Ketenci A, Ozcan E, Karamursel S (July 2005). "Assessment of efficacy and psychomotor performances of thiocolchicoside and tizanidine in patients with acute low back pain". International Journal of Clinical Practice. 59 (7): 764–70. doi:10.1111/j.1742-1241.2004.00454.x. PMID 15963201. S2CID 20671452.
  7. ^ Carta M, Murru L, Botta P, Talani G, Sechi G, De Riu P, Sanna E, Biggio G (September 2006). "The muscle relaxant thiocolchicoside is an agonist of GABAA receptor function in the central nervous system". Neuropharmacology. 51 (4): 805–15. doi:10.1016/j.neuropharm.2006.05.023. PMID 16806306. S2CID 11390033.
  8. ^ Mascia MP, Bachis E, Obili N, Maciocco E, Cocco GA, Sechi GP, Biggio G (March 2007). "Thiocolchicoside inhibits the activity of various subtypes of recombinant GABA(A) receptors expressed in Xenopus laevis oocytes". European Journal of Pharmacology. 558 (1–3): 37–42. doi:10.1016/j.ejphar.2006.11.076. PMID 17234181.
  9. ^ De Riu PL, Rosati G, Sotgiu S, Sechi G (August 2001). "Epileptic seizures after treatment with thiocolchicoside". Epilepsia. 42 (8): 1084–6. doi:10.1046/j.1528-1157.2001.0420081084.x. PMID 11554898. S2CID 24017279.
  10. ^ Giavina-Bianchi P, Giavina-Bianchi M, Tanno LK, Ensina LF, Motta AA, Kalil J (June 2009). "Epileptic seizure after treatment with thiocolchicoside". Therapeutics and Clinical Risk Management. 5 (3): 635–7. doi:10.2147/tcrm.s4823. PMC 2731019. PMID 19707540.
  11. ^ Sechi G, De Riu P, Mameli O, Deiana GA, Cocco GA, Rosati G (October 2003). "Focal and secondarily generalised convulsive status epilepticus induced by thiocolchicoside in the rat". Seizure. 12 (7): 508–15. doi:10.1016/S1059-1311(03)00053-0. PMID 12967581. S2CID 14308541.