Uridine, Trisodium Salt is an energy-rich precursor in the enzymatic biosynthesis of RNA, a potent vasodilator, and induces contractile responses in some tissues.

FibrinopeptideB,human is a 14-amino acid polypeptide released from the amino terminus of the fibrinogen segment.

Selective, high affinity, non-competitive α1A adrenoceptor antagonist (Ki = 0.35 nM). Exhibits no significant activity against a range of other GPCRs, including α2A, β1 and β2 adrenoceptors. Antagonizes effects of phenylephrine on isolated rabbit prostate muscle in vitro and on intra-urethral pressure in rats.