#alkaloids

• Ageratum conyzoides — A species of annual herbaceous plant in the genus Ageratum, native to tropical America, widely distributed as an invasive weed in warm regions of the world and recognized for its medicinal properties. Its leaves emit a strong, goat-like odor, and it is traditionally used for its anti-inflammatory, analgesic, and wound-healing effects, although it contains pyrrolizidine alkaloids toxic to the liver.
• Alangium chinense — A species of small to medium-sized deciduous tree or shrub in the genus Alangium, native to a wide region spanning China, the Caucasus, South Asia, and parts of tropical Africa; a plant structurally characterized by variable leaf shapes (often lobed) and creamy-white flowers with recurved petals. In traditional Chinese medicine (known as Ba Jiao Feng), its roots and bark are empirically used for their analgesic and anti-inflammatory effects in treating rheumatism, although the plant contains potent alkaloids (such as alangine) that impart high toxicity and require rigorous processing.
• Alkaloidal — Pertaining to alkaloids, containing alkaloids, or possessing properties similar to these nitrogenous organic compounds. The term describes extracts, solutions, or chemical structures derived from medicinal or toxic plants, characterized by an intense pharmacodynamic action on the central nervous system.
• Apocynaceae — A family of higher dicotyledonous plants, often tropical or subtropical, characterized by the presence of a white latex, regular hermaphrodite flowers, and follicle-type fruits; a plant belonging to this family. Many species possess high pharmacological importance due to their rich content of alkaloids and cardiotonic glycosides, while some are used ornamentally.
• Atropa — A genus of perennial herbaceous plants in the family Solanaceae, the most famous being Atropa belladonna (deadly nightshade). Species within this genus have a complex biological structure and are highly toxic, containing a large amount of tropane alkaloids (atropine, scopolamine) with major parasympatholytic effects, utilized in the structural pharmaceutical industry and medicine.