Principal action on the bladder. A remedy for enuresis and dysuria. 

Urinary.--Severe, dull pain and feeling of fullness in bladder, not relieved by urinating. Frequent urging with severe pain at the close of urination. Urine flows only drop by drop. Sharp, burning, cutting pain in urethra while urinating. 

Incontinence in children, with dreams or night-mares when passing urine. Incontinence in old women, also with involuntary stools. Retention and dysuria during pregnancy and after delivery. Much mucus in urine. Albuminuria. Involuntary urination. 

Kidney.--Deep pain in region of right kidney, extending to lower abdomen, with urgent desire to micturate. Right lumbar region painful. 

Modalities.--Worse, right side; movement, pressure, touch, sitting down; better, in afternoon from lying down. 

Relationship.--Compare: Hydrangea; Ferr phos; Apis; Canth; Linaria; Chimaph. Equisitum contains silica in appreciable quantity. 

Dose.--Tincture, to sixth potency. A decoction, teaspoonful doses, or the tincture in hot water, is found useful to allay irritability of urinary tract, calculus, dysuria, etc; also for pleuritic effusion and dropsy.