Chromostatin bovine is a chromogranin A (CGA) derivative peptide, which inhibits postassium or carbamoylcholine induced catecholamine release with an ID50 of 5 nM. Chromostatin bovine reduces calcium flux, enhances the desensitization process of the cholinergic-evoked secretory response and modulates the endocrine response associated with catecholamine.

Wulignan A1 exhibits activity against leukemia P-388 in vitro; it also may have anti-influenza virus H1N1 and H1N1-TR (a Tamiflu drug resistant virus strain) activities.

Reference standards.