Panaxatriol is an dammarane-type tetracyclic triterpene sapogenin.

Parthenolide is a sesquiterpene lactone found in the medicinal herb Feverfew.

Patchouli Alcohol is a natural tricyclic sesquiterpene.

Pectolinarin is a flavonoid glycoside compound derived from plants such as thistle.

Peimine is an isosteroidal alkaloid.

Peimnine is a compound that can be isolated from Bolbostemma paniculatum (Maxim) Franquet (Cucurbitaceae family).

Phillyrin is a natural lignan compound isolated from Forsythia suspensa Vahl (Oleaceae).

Physcion an anthraquinone derivative derived from the traditional Chinese medicine rhubarb, is an effective 6-phosphogluconate dehydrogenase inhibitor with blood-brain barrier permeability.

Picroside I is the major ingredient of Picrorhiza scrophulariiflora.

Picroside II is an iridoid glycoside component.

Pinoresinol Diglucoside is an lignan.

Polyphyllin A (Trillin), a saponin compound extracted from Trillium tschonoskii.

Polyphyllin B (Formosanin C) is a diosgenin saponin with multiple biological activities.

Polyphyllin E (Prosapogenin A) is a steroidal saponin compound derived from Veratrum nigrum.

Polyphyllin F (Formosanin VI) is an active saponin derived from plants of the Paris genus.

Prim-o-glucosylcimifugin is a chromogen ketone compound derived from plants such as Saposhnikovia divaricata.