The substance is a peptide consisting mostly of D-amino acids instead of the common L-amino acids. More specifically, it is the disulfide of N-acetyl-D-cysteinyl-D-alanyl-D-arginyl-D-arginyl-D-arginyl-D-alanyl-D-argininamide with L-cysteine.
Etelcalcetide
Efmoroctocog alfa
Vonicog alfa
Drotrecogin alfa
Moroctocog alfa
Difelikefalin
Glucagon 
Glucagon