ChEBI: (2S)-N-[(2S)-6-amino-1-[(2-amino-2-oxoethyl)amino]-1-oxohexan-2-yl]-1-[[(4R,7S,10S,13S,16S,19R)-19-amino-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-13-(phenylmethyl)-1,2-dithia-5,8,11,14,17-pentazacycloeicos-4-yl]-oxomethyl]-2-pyrrolidinecarboxamide is a cyclic peptide.
Lypressin is synthetic 8-L-lysine vasopressin,a polypeptide similar to ADH. The lysine analog isconsidered more stable, and it is absorbed rapidly from thenasal mucosa. Lypressin (Diapid) is pharmaceutically availableas a topical solution, spray, 50 pressor units(185 g)/mL in 5-mL containers. Usual dosage, topical (intranasal),one or more sprays applied to one or both nostrilsone or more times daily.
