Cetocycline (formerly chelocardin or cetotetrine) is tetracycline derivative with potent antibacterial activity against a number of Gram-positive and Gram-negative multi-resistant pathogens. Cetocycline was found to be more active than tetracycline against many clinical isolates of aerobic gram-negative bacilli, but is less active against staphylococci, and has no activity against Pseudomonas. At low concentrations, like classical tetracyclines, chelocardin induces the proteomic signature for peptidyl transferase inhibition demonstrating that protein biosynthesis inhibition is the dominant physiological challenge. At higher concentrations B. subtilis mainly responds to membrane stress indicating that at clinically relevant concentrations the membrane is the main antibiotic target of chelocardin.

Nordinone is a synthetic anti-androgen. It was studied with respect to hirsutism and menstruation disturbances.

Mitindomide was studied as an antineoplastic agent that inhibited the activity of the topoisomerase II. The drug underwent preclinical development; however, this study was discontinued.

Diflucortolone pivalate is a glucocorticoid drug. It might be used as anti-inflammatory and anti-allergic agent.

Furfenorex (unde brand name Frugalan), was used against obesity as an appetite suppressant. One of its metabolite was metamphetamine, which lead to the abuse to the drug. That is why this drug is no longer marketed

The information related to the biological or pharmacological application of fluprednisolone valerate is absent.

Elsamitrucin is a heterocyclic antineoplastic antibiotic isolated from the bacterium Actinomycete strain J907-21. Elsamitrucin intercalates into DNA at guanine-cytosine (G-C)-rich sequences and inhibits topoisomerase I and II, resulting in single-strand breaks and inhibition of DNA replication. It demonstrated a broad spectrum of in vitro cytotoxicity against tumor cell lines. According to the results of Phase II trials elsamitrucin is not an active drug in patients with metastatic breast cancer, colorectal cancer, non-small cell lung cancer or ovarian cancer, however, it showed modest activity in patients with relapsed or refractory non-Hodgkin's lymphoma.

Gemopatrilat is a vasopeptidase inhibitor, that was found to inhibit plasma and renal angiotensin converting enzyme (ACE), as well as renal neutral endopeptidase (NEP). Gemopatrilat is rapidly absorbed, and causes inhibition of circulating and renal ACE and renal NEP after a single oral dose for up to 48 hours in rats. Potentially, this is because the free sulfhydryl group of gemopatrilat forms reversible disulfide linkages with plasma and tissue proteins and is thus eliminated from the body at a very slow rate. Similar metabolism of the compound was found in rat, dog, and human. Gemopatrilat was evaluated for its potential in treatment of antihypertensive activity in hypertension (independent of age, renin and salt status or ethnic origin), as well as its potential as a new therapeutic modality for the treatment of congestive heart failure. The drug was never marketed. A phase II study for treatment of hypertension and heart failure has been discontinued.

Bolenol is a synthetic anabolic steroid that was never marketed.