3-Hexenedioic acid is a normal human unsaturated dicarboxylic acid metabolite with increased excretion in patients with Dicarboxylic aciduria caused by fatty acid metabolism disorders The urinary excretion of 3-Hexenedioic acid is increased in conditions of augmented mobilization of fatty acids or inhibited fatty acid oxidation.

ShK toxin blocks voltage-dependent potassium channel (Kv1.3 channel). ShK toxin can be isolated from the whole body extract of the Caribbean sea anemone (Stichodactylu helianthus). ShK toxin competes with dendrotoxin I and α-dendrotoxin for binding to synaptosomal membranes of rat brain, facilitates acetylcholine release. ShK toxin suppresses K+ currents in cultured rat dorsal root ganglion neurons. ShK toxin also inhibits T lymphocyte proliferation.

Isoflupredone (Isoflupredonum) is a synthetic corticosteroid that acts in vivo by binding to glucocorticoid and corticosteroid receptors in animals (such as horses) to inhibit inflammatory cells and inhibit the expression of inflammatory mediators.