Eryngium aquaticum, Button Snake-root.

A remedy for urinary disorders. Strangury, etc, with nervous erethism. Thick, yellow mucous discharges. Influenza. Uridrosis, sweat of urinous odor in evening.
Respiratory.--Cough, with sense of constriction. Smarting in throat and larynx.
Urinary.--Tenesmus of bladder and urethra. Difficult and frequent micturition. Pain behind pubes. Spasmodic stricture. Renal colic (Pareira; Calc). Congestion of kidneys with dull pain in back, running down the ureters and limbs. Irritable bladder from enlarged prostate gland, or from pressure of uterus.
Male.--Discharge of prostatic fluid from slight causes. Seminal emissions without erections, with lassitude (Dioscor; Phos ac).
Relationship.--Compare: Conium; Cannab; Dios; Ocim; Clemat.
Dose.--Tincture, to third potency.

Boericke's Materia Medica, 1901, was written by William Boericke. Excerpt: The Tinctures.