Remiprostol (also known as SC-46275) is a potent, long-acting gastric antisecretory agent that is not readily available systemically after oral administration. This prostaglandin analog is a very potent and highly selective EP3 receptor agonist with antisecretory and cytoprotective actions. Remiprostol was suggested to be potentially useful in the therapeutic treatment of inflammatory diseases such as peptic ulcer disease (painful sores or ulcers in the stomach or small intestine), ulcerative colitis, Crohn's disease, and autoimmune inflammatory diseases of the central nervous system.

Hexaprofen, a potent anti-inflammatory agent, is an inhibitor of platelet aggregation. Experiments on mice have shown that hexaprofen could reduce the quantity and size of Lewis lung carcinoma (LLC) tumor nodules.

Oxarbazole was developed as an antiasthmatic agent that inhibited the only bronchoconstriction induced by immune complexes. This drug has never been marketed.

Acevaltrate is an iridoid found in variable amounts in Valerianaceae and might be among the bioactive compounds which confer anxiolytic properties to the Valeriana species. Acevaltrate inhibited total H⁺/K⁺-ATPase activity (60.7 ± 7.3 %) from rat gastric epithelium. Acevaltrate inhibited Na⁺/K⁺-ATPase with IC₅₀ value of 22.8 uM. Na⁺/K⁺-ATPase might be one of their molecular targets of Acevaltrate in vivo.

Sobetirome (3,5-dimethyl-4[(4'-hydroxy-3'-isopropylbenzyl)-phenoxy] acetic acid, also known as GC-1 and QRX-431, is a member of a class of compounds known as selective thyromimetics. It was firstly developed by Thomas Scanlan’s group at the University of California-San Francisco (UCSF) in 1995. Sobetirome binds selectively to the main hepatic form of thyroid hormone (TH) receptor, TRβ1, compared to TRα1, which is principally responsible for thyrotoxic effects on heart, muscle and bone. Sobetirome also preferentially accumulates in liver. It was originally envisaged that sobetirome could be used to stimulate hepatic pathways that lower cholesterol without harmful side effects and might be used in conjunction with statins. Indeed, sobetirome progressed through preclinical animal studies and Phase I human clinical trials with excellent results and without obvious harmful side effects. Sobetirome had been in phase I clinical trials for the treatment of lipid metabolism disorders and obesity. However, this research has been discontinued.

Oxepinac was developed as an anti-inflammatory drug. Results of clinical trials have revealed that oxepinac was an effective and well-tolerated drug in the treatment of painful osteoarthritis. Experiments on animal have shown that oxepinac had no teratogenic effect on fetuses in mice and rabbits. Information about the current use of this drug is not available.

Trethocanic acid is a beta-hydroxy acid. It exerts a similar effect on the skin as salicylic acid. Trethocanic acid was used as antihypercholesterolaemic agent.

Aleglitazar is a dual agonist of PPARalpha/PPARgamma which was developed by Hoffmann-La Roche for the treatment of type 2 diabetes. Aleglitazar activates PPAR receptors with EC50 in nanomolar range and exerts a cardioprotective effect in vitro. The drug is currently in phase III of clinical trials.

Vebufloxacin (OPC-7241) is a nalidixic acid analog. It exhibited potent antibacterial activity against gram-positive and -negative bacteria, including Staphylococcus aureus and Pseudomonas aeruginosa.

Fenclorac is a potent nonsteroidal anti-inflammatory agent with significant analgesic and antipyretic activity. It inhibits prostaglandin synthesis both in vitro and in vivo.