| Title:  Pancuronium Bromide CAS Registry Number:  15500-66-0 CAS Name:  1,1¢-[(2b,3a,5a,16b,17b)-3,17-Bis(acetyloxy)androstane-2,16-diyl]bis[1-methylpiperidinium] dibromide Additional Names:  1,1¢-(3a,17b-dihydroxy-5a-androstan-2b,16b-ylene)bis[1-methylpiperidinium] dibromide diacetate;  3a,17b-diacetoxy-2b,16b-dipiperidino-5a-androstane dimethobromide;  2b,16b-dipiperidino-5a-androstane-3a,17b-diol diacetate dimethobromide;  poncuronium bromide (rescinded USAN) Manufacturers' Codes:  NA-97;  Org-NA-97 Trademarks:  Mioblock (Sankyo);  Pavulon (Organon) Molecular Formula:  C35H60Br2N2O4 Molecular Weight:  732.67 Percent Composition:  C 57.38%, H 8.25%, Br 21.81%, N 3.82%, O 8.73% Literature References:  Aminosteroid, competitive neuromuscular blocker.  Prepn:  W. R. Buckett et al., Chim. Ther. 2, 186 (1967); eidem, J. Med. Chem. 16, 1116 (1973).  Structural studies:  Savage et al., J. Chem. Soc. B 1971, 410.  Structure-activity correlation:  Waser, Anaesthesist 20, 23 (1971).  Pharmacology:  W. R. Buckett, I. L. Bonta, Fed. Proc. 25, 718 (1966); W. R. Buckett et al., Br. J. Pharmacol. Chemother. 32, 671 (1968); I. L. Bonta et al., Eur. J. Pharmacol. 4, 83, 303 (1968).  Comparative study of neuromuscular blocking and vagolytic effect:  S. L. Son et al., Anesthesiology 55, 12 (1981).  Review:  Speight, Avery, Drugs 4, 163-226 (1972). Properties:  Odorless crystals with bitter taste, mp 215°.  One gram dissolves in 30 parts chloroform, one part water (20°).  LD50 in mice (mg/kg):  0.047 i.v.; 0.152 i.p.; 0.167 s.c.; 21.9 orally; in rats, rabbits:  0.153, 0.016 i.v. (Buckett, 1968). Melting point:  mp 215° Toxicity data:  LD50 in mice (mg/kg):  0.047 i.v.; 0.152 i.p.; 0.167 s.c.; 21.9 orally; in rats, rabbits:  0.153, 0.016 i.v. (Buckett, 1968) Therap-Cat:  Neuromuscular blocking agent. Therap-Cat-Vet:  Neuromuscular blocking agent. Keywords:  Neuromuscular Blocking Agent; Nondepolarizing Agents.  |