4-(β-D-glucopyranosyloxy)benzoic acid is a phenolic glucoside can be isolated from fennel seeds.

Dropropizine is a racemic non-opiate antitussive agent, it is used as a cough suppressant.

Myricetin 3-O-α-L-arabinopyranoside is a quercetin derivative and plant flavonoid with antioxidant, antibacterial and antiurease effects. Myricetin 3-O-α-L-arabinopyranoside inhibits A2E photooxidation-induced RPE cell death. Myricetin 3-O-α-L-arabinopyranoside is protective against retinal degeneration and protects against blue light (BL)-induced damage in RPE cells and mouse models.