Diuretics, or water pills, increase urine production and help eliminate excess sodium and water, benefiting conditions like heart and liver failure, tissue swelling, and kidney disorders. The document also discusses the medicinal properties of two plants, Gokhru (Tribulus terrestris) known for its anti-inflammatory and tonic effects, and Punarnava (Boerhavia diffusa), used for urogenital and renal disorders. Each plant's morphological characteristics, chemical constituents, and therapeutic uses are detailed.