Atliprofen (previously known as IDPH 8261), a nonsteroidal anti-inflammatory cyclooxygenase inhibitor was developed as an anti-inflammatory drug. Low toxicity and high efficacy allowed making this compound a potentially useful therapeutic agent. IDPH 8261 participated in the clinical trial phase III in India for the treatment of rheumatic disorders However, information about the further development of the drug is not available.

Asimadoline is an orally active, highly selective kappa-opioid receptor agonist with approximately 500-fold greater affinity for human kappa-, as compared with either delta- or mu-opioid receptors. Due to its high selectivity for the kappa-opioid receptor, asimadoline does not produce mu-opioid like side effects. It is investigated for use/treatment in irritable bowel syndrome, pruritus, postoperative ileus. A drug interaction study investigating the coadministration of asimadoline with ketoconazole was performed in healthy volunteers - a two to three-fold increase in AUC and Cmax of asimadoline was observed with concomitant administration of ketoconazole. The most common adverse events are diarrhea, nausea, sinusitis, headache and fatigue.

Aclantate is a nonsteroidal anti-inflammatory drug.

Peradoxime is an antihypertensive agent. In normal animals, 37-48% of the radioactivity from an oral dose of labeled peradoxime or parenteral dose was excreted in the urine, and 48-50% in the feces. Biliary and urinary metabolites of peradoxime were principally found as conjugates with glucuronic acid.

FILENADOL is an analgesic drug with antinociceptive and anti-inflammatory properties. It reduces the hyperalgesic effects of inflammatory mediators besides inhibiting partially the synthesis of eicosanoids.

Enolicam (CGS 5391B) is a non-steroidal anti-inflammatory drug with combined cyclooxygenase and lipoxygenase inhibitory activity. It is able to trap oxygen radicals. Enolicam was effective in animal models of traumatic shock and osteoarthritis.

Cintazone is a non-steroidal anti-inflammatory drug. It is was discovered in the 1960s, and was shown to be an anti-phlogistic agent in animal studies. Clinical development of this drug is not reported.

Icoduline (previously known as CBS-113 A) is a dual inhibitor of 5-lipoxygenase and cyclo-oxygenase with anti-inflammatory properties. This drug was potentially useful in ophthalmology and as an alternative to glucocorticoids. In addition, icoduline was useful to treat skin disorders. The drug participated in the clinical trial for eye disorders in France; however, this study was discontinued.

Olpimedone was developed as an anti-rheumatic agent and analgesic, however, the drug that has never been marketed. Information about the current use of olpimedone is not available.

Licofelone (ML 3000) is a pyrrolizine derivative originally discovered by Merckle GmbH and developed by EuroAllaince with a unique pharmacological profile, which comprises optimal gastrointestinal tolerability and high analgesic and anti-inflammatory activity. These effects are due to balanced and selective inhibition of both cyclo-oxygenase and 5-lipoxygenase. Inhibition of 5-lipoxygenase may reduce the gastrointestinal toxicity associated with other non steroidal anti-inflammatory drugs, which only inhibit cyclooxygenase. Licofelone also has antipyretic and antiaggregatory properties. Clinical and preclinical trials were also undertaken for osteoarthritis, rheumatoid arthritis, asthma, pain and inflammation. However, development for these indications appear to have been discontinued.