Histrelin acetate is a nonapeptide analog of gonadotropin-releasing hormone (GnRH) with added potency. It acts on particular cells of the pituitary gland called gonadotropes when present in the bloodstream. Histrelin stimulates these cells to release luteinizing hormone and follicle-stimulating hormone. Thus it is considered a gonadotropin-releasing hormone agonist or GnRH agonist.

1,3,5-tris(pyridin-4-ylethynyl)benzene is a compound.

Secoaristolenedioic acid (Compound 1) is a sesquiterpene, which is found in ethanol extract of the roots and rhizomes of Nardostachys chinensis.