Gadocoletic acid (also Gadoletic acid trisodium salt, or B22956/1) is a magnetic resonance contrast agent. Based on results from animal imaging experiments and pharmacokinetic data it was suggested that gadocoletic acid trisodium salt has strong potential for clinical use in Magnetic Resonance Coronary Angiography and Myocardial Perfusion Imaging. The small molecules of gadocoletic acid are bound after injection to large human serum albumin molecules in coronary vessels with the result of high vessel/muscle contrast. The ability of B229563− (anion) to bind to more than one site on the albumin molecule allows a positive correlation between dose and blood relaxation rate enhancement at doses higher than 0.05 mmol/kg, the dose that produces roughly a total plasma concentration equimolar to the albumin concentration at equilibrium distribution. Gadocoletic acid is thought to be highly efficacious in inversion recovery-prepared 3D gradient-recalled echo, navigator echo-gated coronary angiography in humans already at doses below 0.1 mmol/kg.

Lobucavir is a new anti-cytomegalovirus infection agent, manufactered by Bristol Myers Squibb, Inc. Lobucavir is a cyclobutyl analog of guanine with broad spectrum antiviral activity against most herpes viruses and Hepatitis B. Lobucavir was shown to inhibit herpes simplex virus (HSV) DNA polymerase after phosphorylation by the HSV thymidine kinase. The drug was well tolerated with few side effects. Lobucavir had been in phase III clinical trial for the treatment of Hepatitis B, Herpes simplex virus infections and in phase II for the treatment of Cytomegalovirus infections. All these studies were discontinued.

Aspaminol (1,1 diphenyl-3-piperidinobutanol hydrochloride) is a nonspecific smooth muscle relaxant. It inhibits calcium uptake. The relaxation of smooth muscle induced by aspaminol may be due to a combining of aspaminol with calcium ions at the binding sites on the surface of smooth muscle, thus decreasing the supply of calcium ions to the contractile element.

Endrysone is a glucocorticoid with anti-inflammatory and antiallergic properties. It is used topically for skin conditions as an ophthalmic anti-inflammatory agent.

Tipredane is one of the compounds of a new series of sulfur-containing steroids synthesized at The Squibb Institute for Medical Research and is being developed for topical treatment of human dermatoses. Tipredane is structurally unique in that the classical l7-beta two-carbon side chain and the 17-alpha hydrogen of the steroid have been replaced by two alkylthio substituents. Tipredane has been shown to possess moderate to potent anti-inflammatory activity in various animal models, and to exhibit favorable separation of local anti-inflammatory activity from adverse systemic effects in both animals and humans. After oral administration, [3H]tipredane was rapidly absorbed, metabolized, and excreted into urine and feces. Metabolism of tipredane was rapid and complex, with significant species differences, although the disposition in rhesus and cynomolgus monkeys seemed to be similar to humans. Tipredane had been investigated as the therapeutic agent for the treatment of allergic rhinitis, asthma and skin disorders. However, this development was discontinued.

Edogesterone (PH-218) is steroid with progestational and antiandrogenic properties.