Two plants particularly rich in tannins are grouped under the term Potentilla, respectively called:
tormentilla (Pontetilla tormentilla Nec. = P. erecta L. Rau.)
and argentina (Potentilla anserina L.).
Potentilla anserina
Botanical name: Pontetilla anserina L.
Common names: Potentilla, Anserina, Argentina
Family: Rosaceae
Drug: whole plant
Perennial herbaceous plant widespread in the grassy and marshy foothills areas. It has pinnate leaves composed of leaflets with a serrated edge, and flowers of a very intense yellow with 5 petals (contrary to the 4 of the Pontetilla tormentilla).
Tannins (6-10%), with a prevalence of
ellagic tannins
Phytosterols, triterpenes (tormentol)
Flavonoids and leukoanthocyanidins
Astringents
Anti-inflammatory
Spasmolytic
MAIN INDICATIONS: due to its richness in tannins, the main use of Argentina is as an astringent remedy, precious in diarrheal forms.
There are also indications for its spasmolytic activity in the gastrointestinal and uterine tract, which makes it useful against abdominal cramps (gastrointestinal tract disorders characterized by spasms) and painful menstruation (dysmenorrhea).
FURTHER INDICATIONS: Potentilla anserine is indicated in the symptomatic treatment of inflammatory processes affecting the oropharyngeal mucous membranes; always in the form of rinses, it helps to soothe toothache. As a tannin drug, it can be used for external washing in the presence of wounds, and internal in cases of leucorrhoea.
The dried Argentine root is used as a base for decoctions with a stimulating, tonic and carminative action.
NOTES: the adjective astringent belongs to all those substances which, used internally or externally, cause a constricting action on blood vessels, hindering vasodilation and the consequent increase in vascular permeability that accompanies inflammatory phenomena.
The astringent capacity is typical of drugs rich in tannins, such as Argentina.
When applied topically to damaged skin or mucosa, tannins bind tenaciously to epithelial cell proteins. Once in contact with the intestinal mucosa, therefore, the tannins decrease its permeability, producing an astringent effect particularly useful in the presence of diarrhea. At this and other levels, protein coagulation leads to the formation of a protective and antisecretive layer, useful for preventing the passage of pathogenic microorganisms and calming local inflammation.
METHOD "D" USE AND DOSAGE:
Infusion (for internal use in diarrheal forms): 3 grams of drug per cup (150 ml), to be taken several times a day.
Decoction (for internal use as an antispasmodic): 2-3 grams of the drug per cup (150 ml), to be taken several times a day.
Decoction (for rinses, gargles, compresses and topical use): 50 grams of drug per liter of water.
Powder / dry extract: 3-6 grams of drug per day divided into three intakes, as recommended by the herbalist or the product label.
SIDE EFFECTS, CONTRAINDICATIONS, WARNINGS
Contact your doctor if diarrhea persists after three to four days of treatment with argentina. Given the absence of reliable data on the toxicity profile in such conditions, its use in pregnancy, lactation and under 14 years is not recommended.
The use of herbal preparations, including those based on potentilla anserine, can negatively interfere with the absorption of other drugs, increasing or decreasing their therapeutic effect. It is therefore recommended to take this remedy at least 2-3 hours after "taking medicines.
In sensitive patients, treatment with argentina can cause episodes of nausea and vomiting, and increase gastric irritation.
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