Ioxitalamic acid is a contrast media, which was used as a meglumine salt under the name Telebrix for intravenous urography; computed tomography; digital angiography; angiocardiography (ventriculography, coronary angiography). The drug is no longer available on the market.

Ioglicinate, contrast agent, is used in computed tomography.

Fosfonet sodium (or phosphonoacetate sodium), an organophosphorus compound, was found to be a specific inhibitor of the virus-induced DNA polymerases and thus could inhibit specifically the replication of herpes-viruses.

Iodoalphionic acid is the contrast medium, which was used for gallbladder examination. It is rarely appeared in the colon and, therefore, rarely masked the gallbladder. The density of the shadow produced by Iodoalphionic acid was greater than that produced by iodophthalein. It was reliable peroral cholecystographic medium, which was less objectionable to take and seldom causes vomiting. Diarrhoea occurred in some cases, but not more often than with tetraiodophenolphthalein. The ingestion of Iodoalphionic acid resulted in low thyroidal radioiodine accumulation for periods ranging from a few weeks to many months.

Bucloxic acid, a nonsteroidal anti-inflammatory agent, which was studied to treat the chronic glomerular nephropathy.

Potassium canrenoate (INN, JAN) or canrenoate potassium (USAN) (brand names Venactone, Soldactone), the potassium salt of canrenoic acid, is an aldosterone antagonist of the spirolactone group. Like spironolactone, it is a prodrug, which is metabolized to canrenone in the body. Potassium canrenoate is not licensed in the UK, but may sometimes be prescribed off-licence to treat oedema. It is given intravenously. Potassium canrenoate is a mineralocorticoid receptor (MR) antagonist. The blockade with MR antagonist have beneficial effects in patients with heart failure and myocardial infarction, often attributed to blocking aldosterone action in the myocardium.

Hopantenic acid (homopantothenic acid) is a central nervous system depressant. Formulated as the calcium salt, it is used as a pharmaceutical drug in the Russian Federation under the brand name Pantogam. In Russia it is widely used to treat a variety of neurological, psychological and psychiatric conditions. The drug has been on the pharmaceutical market since 1979 and has been proven to be safe even for children from 3 years old upwards. Hopantenic acid is a natural forming substance, has some of the lowest side effects and considered to be very safe. Use Pantogam to treat a wide variety of cognitive and nervous system disorders with combined sedative and mild stimulant effect. Hopantenic acid is not approved for use in Europe or the United States. GABA receptor agonist.

Mesotartaric acid is one of an isomer of Tartaric acid. Mesotartaric acid is a diastereomer which has two opposite chiral centers in the same molecule making the molecule optically inactive. Mesotartaric acid is also commonly called pyrotartaric acid because it is formed by heating d-(-)-tartaric acid. Mesotartaric Acid have several industrial application and may be used as pH regulator, a metal chelator, the reagent in organic synthesis and etc.

Isonicotinic acid considered to be inactive isomer of nicotinic acid. Isonicotinic acid is a metabolite of pyridine-4-carboxy hydrazide (isonicotinyl hydrazide; isoniazid) a front-line weapon in the battle against tuberculosis. Isonicotinic acid and its derivatives are used in manufacturing pharmaceuticals and agrochemicals.

ARUNDIC ACID (ONO-2506) is an enantiomeric, three carbon atom homolog of valproic acid under development by ONO Pharmaceutical for the potential treatment of stroke, as well as Amyotrophic Lateral Sclerosis and Parkinson's disease. The injectable formulation (Proglia) is finished phase III trials for acute-phase cerebral infarction, and the oral formulation (Cereact) is finished phase II trials in the UK for Alzheimer's disease (AD) and Parkinson's disease (PD). ARUNDIC ACID restores normal astrocyte functions after brain damage by preventing reactive astrocytosis, by activating astrocytic GABAA receptors and suppressing GABA transferase. ARUNDIC ACID inhibits S-100β synthesis in activated cultured astrocytes. This agent has additional antiglutamate and antiinflammatory COX-2 inhibitor properties