AMINOMETRADINE, a uracil derivative, is a diuretic. It appears to inhibit the reabsorption of sodium ions by the renal tubules. AMINOMETRADINE is used in the management of edema and in the treatment of congestive heart failure.

CHLORMERODRIN, an isourea derivative, is an organomercury compound that was previously used as a diuretic. Its radiolabelled (197Hg, 203Hg) forms were used as diagnostics in renal imaging and brain scans.

MERSALYL (Mersal) is an organomercury compound, mercurial diuretics that superseded by safer diuretics such as thiazides, and is hardly used anymore. Due to the idiosyncratic nature of mercury toxicity, the risk of severe disease and sudden death are unpredictable and frequently show no warning signs. Mercurial diuretics cause diuresis by reducing the reabsorption sodium in the ascending loop of Henle, thus causing more water being delivered to the distal convoluted tubule. Unfortunately, earlier physicians misconstrued hallmark symptoms of mercury poisoning such as excessive salivation as signs of mercury's efficacy, including up until the early 1960s when the use of mercurial diuretics was halted in medicine.

Pastaron (Urea) is a waste product of many living organisms, and is the major organic component of human urine. It is a very important starting material in a number of chemical syntheses, and is used on an industrial scale for the manufacture of fertilizers, pharmaceuticals, and resins. Urea is an osmotic diuretic similar to mannitol but more irritant. Applied topically, urea promotes hydration of keratin and mild keratolysis in dry skin. It increases water uptake by the stratum corneum and has an antipruritic effect. Pastaron is used to soften rough or dry skin caused by skin conditions such as eczema, psoriasis, keratosis, and others.

Amanozine (W-1191-2) is a triazine diuretic compound.

Alilusem (M17055) is under development as a novel loop diuretic for oral administration. M17055 has a potent diuretic effect and can be categorized as a loop diuretic that inhibits both the cotransport of Na+, K+, and 2Cl
- at the thick ascending Henle’s loop and the reabsorption of Na+ at the distal tubule cells in the kidney. Structure of M17055 is different from those of other loop diuretics; M17055, which has a sulfate group in its structure is soluble and well absorbed, and its bioavailability in humans is 42-60% (unpublished observation). Considering that the pKa of M17055 is 2.39, almost of M17055 would be in ionized form at physiological pH in the small intestine. In humans, the major elimination route of M17055 is renal excretion, 59-72% of the dose being recovered in unchanged form in urine; the remainder is thought to be metabolized by both CYP3A4 and CYP2C9.

Clofenamide is a benzenedisulfonamide-based agent and carbonic anhydrase (CA) inhibitor with diuretic activity. Clofenamide inhibits CA, thereby preventing sodium, bicarbonate and thus water reabsorption in the proximal convoluted tubule resulting in diuresis.

Clopamide is a thiazide diuretic which helps in removing fluid from the body. Clopamide is used in treatment of hypertension and edema.

Zidapamide (1-methyl-2-(3'-sulphenyl-4'-chlorobenzamido)-isoindoline) is an isoindoline derivative exerting diuretic, salutaric and hypotensive activity.

Piretanide (INN, trade names Arelix, Eurelix, Tauliz) has been synthesized in 1973 at Hoechst AG (Germany) as a loop diuretic[2] compound by using a then-new method for introducing cyclic amine residues in an aromatic nucleus in the presence of other aromatically bonded functional groups. Studies of piretanide in rats and dogs in comparison with other high-ceiling diuretics such as furosemide and bumetanide found a more suitable dose/response rate (regression line) and a more favourable sodium/potassium excretion ratio. These findings led eventually to clinical studies in man and finally to the introduction as a saluretic and antihypertensive medication in Germany, France, Italy and other countries.