A plant genus of the family ASTERACEAE. The dried flower heads of Arnica montana are used externally as a counterirritant and tincture for sprains and bruises, either as crude extract or in homeopathic dilution (HOMEOPATHY). Arnica contains volatile oils (OILS, VOLATILE), arnicin, arnisterol, FLAVONOIDS; TANNINS; and resin. The common name of Wolf's Bane is similar to the common name for ACONITUM.

Perennial herb Symphytum officinale, in the family Boraginaceae, used topically for wound healing. It contains ALLANTOIN, carotene, essential oils (OILS, VOLATILE); GLYCOSIDES; mucilage, resin, SAPONINS; TANNINS; triterpenoids, VITAMIN B12, and ZINC. Comfrey also contains PYRROLIZIDINE ALKALOIDS and is hepatotoxic if ingested.

A system of therapeutics founded by Samuel Hahnemann (1755-1843), based on the Law of Similars where "like cures like". Diseases are treated by highly diluted substances that cause, in healthy persons, symptoms like those of the disease to be treated.

Materials or substances used in the composition of traditional medical remedies. The use of this term in MeSH was formerly restricted to historical articles or those concerned with traditional medicine, but it can also refer to homeopathic remedies. Nosodes are specific types of homeopathic remedies prepared from causal agents or disease products.

A plant genus of the family CUCURBITACEAE that is the source of bryodin 1 (a ribosome-inactivating protein).

A plant genus of the family ASTERACEAE. Members contain CAROTENOIDS, essential oils (OILS, VOLATILE), flavonoids, mucilage, SAPONINS, and STEROLS. The plants are used both topically and internally. The common name of Marigold is also used for TAGETES.

The geographic designation for states bordering on or located in the Pacific Ocean. The states so designated are Alaska, California, Hawaii, Oregon, and Washington. (U.S. Geologic Survey telephone communication)