This section is from the book "A Practitioner's Handbook Of Materia Medica And Therapeutics", by Thos. S. Blair. Also available from Amazon: A Practitioner's handbook of Materia Medica and Therapeutics.
Triticum Repens. Couch Grass. A soothing diuretic, increasing the flow of the watery portion of the urine. It is of positive value when the urine is dense and causes irritation of the mucous surfaces. Since it is non-irritating and entirely harmless, it can be given freely in irritable bladder, dysuria, cystitis, gonorrhea, lithemia, prostatitis, and many other conditions. (F.e. or ec. tr., 10 to 60 I.)