ChEBI

Any minor or unwanted substance introduced into the environment that can have undesired effects.

A molecular entity capable of accepting a hydron from a donor (Bronsted acid).

A drug that mimics the effects of stimulating postganglionic adrenergic sympathetic nerves. Included in this class are drugs that directly stimulate adrenergic receptors and drugs that act indirectly by provoking the release of adrenergic transmitters.

Any eukaryotic metabolite produced during a metabolic reaction in plants, the kingdom that include flowering plants, conifers and other gymnosperms.

Any prokaryotic metabolite produced during a metabolic reaction in bacteria.

A xenobiotic (Greek, xenos "foreign"; bios "life") is a compound that is foreign to a living organism. Principal xenobiotics include: drugs, carcinogens and various compounds that have been introduced into the environment by artificial means.

Any intermediate or product resulting from metabolism. The term 'metabolite' subsumes the classes commonly known as primary and secondary metabolites.

A drug that mimics the effects of stimulating postganglionic adrenergic sympathetic nerves. Included in this class are drugs that directly stimulate adrenergic receptors and drugs that act indirectly by provoking the release of adrenergic transmitters.

Drug used to cause constriction of the blood vessels.

A drug used to relieve nasal congestion in the upper respiratory tract.