Carbetocin

Carbetocin
Clinical data
Trade namesDuratocin, Pabal, Lonactene, others
Other names(2-O-Methyltyrosine)deamino-1-carbaoxytocin; Deamino-2-O-methyltyrosine-1-carbaoxytocin; 1-Butanoic acid-2-(O-methy-L-tyrosine)-1-carbaoxytocin; 1-butyric acid-2-[3-(4-methoxyphenyl)-L-alanine]oxytocin
AHFS/Drugs.comMicromedex Detailed Consumer Information
Routes of
administration
Intravenous, intramuscular
ATC code
Legal status
Legal status
  • UK: POM (Prescription only)
Pharmacokinetic data
Bioavailability80% (IM)
Elimination half-life85–100 minutes
Identifiers
  • (2S)-1-[(3S,6S,9S,12S,15S)-12-[(2S)-butan-2-yl]-
    9-(2-carbamoylethyl)-6-(carbamoylmethyl)-15-
    [(4-hydroxyphenyl)methyl]-16-methyl-5,8,11,14,17-
    pentaoxo-1-thia-4,7,10,13,16-pentazacycloicosane-
    3-carbonyl]-N-[(1S)-1-(carbamoylmethylcarbamoyl)-
    3-methyl-butyl]pyrrolidine-2-carboxamide
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
CompTox Dashboard (EPA)
ECHA InfoCard100.048.450
Chemical and physical data
FormulaC45H69N11O12S
Molar mass988.17 g·mol−1
3D model (JSmol)
  • CC[C@H](C)[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSCCCC(=O)N[C@H](C(=O)N1)Cc2ccc(cc2)OC)C(=O)N3CCC[C@H]3C(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N)CC(=O)N)CCC(=O)N
  • InChI=1S/C45H69N11O12S/c1-6-25(4)38-44(66)51-28(15-16-34(46)57)40(62)52-31(21-35(47)58)41(63)54-32(23-69-18-8-10-37(60)50-30(42(64)55-38)20-26-11-13-27(68-5)14-12-26)45(67)56-17-7-9-33(56)43(65)53-29(19-24(2)3)39(61)49-22-36(48)59/h11-14,24-25,28-33,38H,6-10,15-23H2,1-5H3,(H2,46,57)(H2,47,58)(H2,48,59)(H,49,61)(H,50,60)(H,51,66)(H,52,62)(H,53,65)(H,54,63)(H,55,64)/t25-,28-,29-,30-,31-,32-,33-,38-/m0/s1 N
  • Key:NSTRIRCPWQHTIA-DTRKZRJBSA-N N
 NY (what is this?)  (verify)

Carbetocin, sold under the brand names Pabal among others, is a medication used to prevent excessive bleeding after childbirth, particularly following Cesarean section. It appears to work as well as oxytocin. Due to it being less economical than other options, use is not recommended by NHS Scotland. It is given by injection into a vein or muscle.

Side effects differ little from that of no treatment or placebo. Use is not recommended in people with epilepsy or eclampsia. Carbetocin is a manufactured long acting form of oxytocin. It works by activating the oxytocin receptor which causes the uterus to contract.

Carbetocin was first described in 1974. It was approved for medical use in Canada and the United Kingdom in 1997. It is on the World Health Organization's List of Essential Medicines. It is not available in the United States or Japan.