Melquinast is an antiasthmatic, antiallergic substance not acting primarily as antihistamines.

Alvespimycin (17-desmethoxy-17-N,N-dimethylaminoethylamino-geldanamycin) (17-DMAG; NSC 707545) is an inhibitor of the molecular chaperone heat shock protein HSP90. Alvespimycin is a derivative of antineoplastic benzoquinone antibiotic geldanamycin. Alvespimycin binds to HSP90, a chaperone protein that aids in the assembly, maturation and folding of proteins. Subsequently, the function of Hsp90 is inhibited, leading to the degradation and depletion of its client proteins such as kinases and transcription factors involved with cell cycle regulation and signal transduction. Alvespimycin was studied in clinical trials for the treatment of solid tumors and hematologic malignancies however its development was discontinued.

FIDUXOSIN is a selective alpha1-adrenoceptor antagonist with higher affinity for alpha1A-adrenoceptors and for alpha1D-adrenoceptors than for alpha1B-adrenoceptors. It was in clinical trials for the treatment of benign prostatic hyperplasia.

Paranyline was used in dispersible formulations of anti-inflammatory agents. Information about the current use of this drug is not available.

Emapunil acts as a selective agonist at the peripheral benzodiazepine receptor (TSPO). At the cellular level, the selective TSPO ligand XBD173 potentiated the amplitude and duration of GABA-mediated inhibitory postsynaptic currents in mouse medial prefrontal cortical neurons, which was prevented by finasteride. In animal and human trials, XBD173 produced rapid anxiolytic and anti-panic effects probably via newly synthesized neurosteroids, without producing sedation or withdrawal symptoms, and may represent a promising target for the development of fast-acting anxiolytics with a more favourable side-effect profile than benzodiazepines.

Butaprost, a structural analog of PGE2, is a selective agonist for the EP2 receptor subtype. EP2 receptors are expressed on human neutrophils and on respiratory, vascular, and uterine smooth muscle. Butaprost binds with about 1/10 the affinity of PGE2 to the recombinant murine EP2 receptor and does not bind appreciably to the other murine EP receptors or the DP, TP, FP, and IP receptors. Butaprost has frequently been used to pharmacologically define the EP receptor expression profile of various human and animal tissues and cells. Butaprost effectively reduces the subconjunctival scarring response. Given the significance of wound healing modulation in blebs, butaprost's inhibitory effect on subconjunctival Tenon's fibroblasts may be beneficial in managing postoperative scarring in glaucoma surgery.

Doxybetasol is the corticosteroid. It is an impurity of Betamethasone, which is a glucocorticoid used as an anti-inflammatory agent. Doxybetasol also has anti-inflammatory and anti-allergic properties.