in acute cystitis and cysto-pyelitis, 10 drops in some water one hourly to begin with, thereafter two hourly. As soon as improvement sets in administer 10-15 drops in some water 3-4 times a day. In chronic cystitis, cysto-pyelitis and bacteriuria: administer 10-15 drops in some water 2-3 times daily before meals until disappearance of symptoms. In bladder irritation: 10-15 drops in some water once or twice a day.