medicinal plants

Glycosides

Compounds made of two parts: Glycone (sugar) which makes the compound inert, and Aglycone (non-sugar) which becomes biologically active when the sugar is removed.

Alkaloids

Nitrogen-containing compounds derived from amino acids, usually bitter and often neurotoxic, affecting the nervous system or muscle control.

Secondary metabolites

Compounds produced by plants that are not essential for basic survival but serve functions such as defense, communication, and allelopathy.

Species that produce glycosides

foxglove, oleander, willow, coumarin glycoside

species that produce alkaloids

coca, opium poppy, tobacco, belladonna, ephedra, coffee, tea, cacao

Digitoxin

A cardiac glycoside obtained from the foxglove plant (Digitalis purpurea) used to regulate heart function.

oleandrin

a cardiac glycoside obtained from the oleander plant

Salicin

obtained from willow and led to the development of asprin

Cocaine

An alkaloid derived from the coca plant (Erythroxylum coca), known for its stimulant effects.

Morphine

An alkaloid derived from the opium poppy (Papaver somniferum) used for pain relief and anesthesia.

Nicotine

an alkaloid obtained from tobacco

atropine

alkaloids obtained from belladonna plant used to dialate pupils

Ephedrine

alkaloid obtained from ephedra

Quinine

An alkaloid derived from Cinchona trees, used to treat malaria.

Coumadin

A blood thinner developed from coumarin glycosides, used to treat clotting disorders.

Scopolamine

An alkaloid used to treat motion sickness and a variety of gastrointestinal disorders.

Plant compounds role in disease treatment

Plant-based compounds like digitoxin, morphine, and quinine provide important treatments for cardiovascular disease, pain relief, infectious diseases, and neurological conditions.

History of quinine during WWII

During WWII, the U.S. sought new sources of quinine from South America after Axis powers seized traditional sources and malaria outbreaks increased, as chemists could not fully synthesize it until 2001.