Picafibrate is clofibrate derivative. It is a hypocholesteraemic agent. Fibrates reduce plasma triglycerides by inhibiting their hepatic synthesis and increasing their catabolism. These effects are due to activation of peroxisome proliferator-activated receptors (PPAR alpha) and induction of the over-expression of genes containing a peroxisome proliferator response element (PPRE) in their promoter.

Moguisteine is a non-narcotic antitussive compound. Moguisteine demonstrated inhibitory effect on rapidly adapting irritant receptors that could account for the antitussigenic effect of this compound. Furthermore, it is possible that ATP-sensitive K(+) channels may be involved in the anti-tussive effect of peripherally acting non-narcotic moguisteine. The drug did not show any toxic effect on the dams and their fetuses, nor did it have any teratogenic effect in either of the tested species. Finally, moguisteine had no adverse effects, either on parturition or on peri-and postnatal survival and/or development of the offspring. It was reported that moguisteine to be effective in reducing cough frequency in chronic cough of bronchitis and COPD. It was recommended for the short-term symptomatic relief of coughing. Preregistration of moguisteine in Italy is discontinued.

Proadifen is an inhibitor of drug metabolism and cytochrome P450 enzyme system activity. It stimulated the release of prostacyclin (PGI2) from the rabbit aorta, bovine aorta and human umbilical vein in vitro, but had no effect on cultured smooth muscle from the bovine aortic media. In human platelets, proadifen inhibited prostaglandin and thromboxane production induced by A23187, thrombin, and ADP. Proadifen might thus constitute the prototype of a new class of antiplatelet drugs.

Icomucret (15(S)-HETE) is an hydroxyeicosatetraenoic acid developed by Alcon Research, Ltd for treatment Ophthalmic Disorders. In vitro Icomucret has been shown to inhibit LTB4 formation, 12-HETE formation and specifically inhibits the neutrophil chemotactic effect of LTB4. The inhibition of LTB4 formation is probably due to modulation of the 5- lipoxygenase (LO) because no changes in PGE2 formation have been determined. In vivo, Icomucret inhibits LTB4-induced erythema and edema, and reduces LTB4 in the synovial fluid of carragheenan-induced experimental arthritis in dogs. Icomucret has also some immunomodulatory effects. It inhibits the mixed lymphocyte reaction, induces generation of murine cytotoxic suppressor T cells, and it decreases interferon production by murine lymphoma cells. Furthermore, IL-4 and IL-13 have recently been shown to be potent activators of the 15-LO in mononuclear cells. Icomucret induces the secretion of membrane-bound mucins from human conjunctival and corneal epithelial cells. Icomucret was evaluated in clinical trials for Dry Eye Syndrome treatment. However from 2007 no future development reported, and Icomucret development sims to be discontinued.

Pregnanediol is a chief steroid metabolite of progesterone that is biologically inactive and occurs as pregnanediol glucuronate in the urine. Pregnanediol has two hydroxyl groups, at 3-alpha and 20-alpha. A test can be done to measure the amount of pregnanediol in urine. The urine test offers an indirect way to measure progesterone levels in the body. It is a standard in the colorimetric determination of urinary pregnanediol in clinical laboratories.

Alitame [l-α-aspartyl-N-(2,2,4,4-tetramethyl-3-thioethanyl)-d-alaninamide] is an amino acid-based sweetener developed by Pfizer Central Research from l-aspartic acid, d-alanine, and 2,2,4,4-tetraethylthioethanyl amine. A terminal amide group instead of the methyl ester constituent of aspartame was used to improve the hydrolytic stability. The incorporation of d-alanine as a second amino acid in place of l-phenylalanine has resulted in optimum sweetness. The increased steric and lipophilic bulk on a small ring with a sulfur derivative has provided a very sweet product and good taste qualities. Alitame is noncariogenic. From an oral intake, 7–22% is unabsorbed and excreted in the feces. The remainder is hydrolyzed to aspartic acid and alanine amide. The aspartic acid is normally metabolized, and the alanine amide is excreted in the urine as a sulfoxide isomer, sulfone, or conjugated with glucuronic acid. U.S. Food and Drug Administration has approved alitame for use as per acceptable daily intake (ADI) value.

THIOINOSINE (Methylmercaptopurine riboside, NSC- 40774) is a purine derivative with antineoplastic and anti-angiogenic properties. THIOINOSINE is readily converted in cells to its active form, 6-methylmercaptopurine ribonucleoside 5'- monophosphate (MMPR-P), by the enzyme adenosine kinase. THIOINOSINE inhibits amidophosphoribosyltransferase, the first committed step in de novo purine synthesis, and inhibits fibroblast growth factor-2 (FGF2)-induced cell proliferation. It has been used similarly to Mercaptopurine in the treatment of Leukemia. It has being tested in clinical trials for advanced pancreatic cancer.

Cinaciguat acts specifically on oxidized/haem-free soluble guanylyl cyclase by binding to the enzyme's haem pocket and mimicking the nitric-oxide-bound haem group. It is in clinical development for the treatment of acute decompensated heart failure. Cinaciguat had been in phase II clinical trials. However, trials were terminated early because of an excess of hypotension in the cinaciguat arms and subsequent slow enrolment.

Andolast is a small molecule activator of Calcium-activated potassium channels and an inhibitor of IgE-mediated anaphylaxis. Andolast is under investigation as an anti-asthmatic and for the treatment of COPD.

2-Cyano-3,12-dioxooleana-1,9-diene-28-oic acid (CDDO, also known as Bardoxolone) is a synthetic triterpenoid that displays potent anti-inflammatory and antitumorigenic activities. CDDO was in the clinical trial phase I for the treatment patients with Solid tumors and leukemia, but that studies were discontinued. It is known, that CDDO blocks the cellular synthesis of inducible nitric oxide synthase and inducible COX-2. In addition, was discovered, that CDDO disrupted intracellular redox balance and thereby induce apoptosis. Moreover, CDDO is a ligand for peroxisome proliferator-activated receptor that it induces genes regulated by Nrf2, including heme oxygenase-1 and eotaxin-1, which play a role in antioxidant response element signaling activity.