Zindotrine [MDL 257] is a phosphodiesterase inhibitor that was undergoing phase II clinical trials, with Aventis Pharma, as an antiasthmatic. However, no recent study has been reported. Hoechst Marion Roussel originally developed the drug. Efficacy and cardiovascular effects of a single 300 mg oral dose of zindotrine were compared with placebo in a two-period, double-blind, and crossover trial. A single dose of zindotrine 300 mg provided effective bronchodilator action with a relatively prolonged response and tolerable side effects

Azetepa is an alkylating agent. It has been studied in the treatment of malignant tumors.

Methylarsonic acid, monosodium salt is an organoarsenic compound formed from the methylation of inorganic arsenic by living organisms. Methylarsonate is used as a contact herbicide in either the monosodium or disodium salt form. It goes by the trade names Weed-E-Rad, Ansar 170 H.C., Ansar 529 H.C., DiTac and others. Methylarsonate is considered only slightly toxic, having an oral LD50 of 2200 mg/Kg for rats. The inhalation risk is greater with LD50 Rats >20 mg. Long term studies with people exposed to organoarsenicals has shown an increased risk of skin cancer (Spiewak, 2001), lung cancer and some liver cancers, although some recent studies have shown some arsenic containing compounds (specifically Arsine trioxide) may have anticarcinogenic properties (Wang, 2001). In mammals, Methylarsonate is also an intermediate in the detoxification of inorganic arsenic. In the arsenate detoxification I pathway, arsenite reacts with S-adenosyl-L-methionine to produce methylarsonate and S-adenosyl-L-homocysteine. Arsenite methyltransferase catalyzes this reaction. Methylarsonate then reacts with 2 glutathione molecules to produce glutathione disulfide and methylarsonite. This reaction is catalyzed by methylarsonate reductase. Methylarsonate is an organic arsenic compound with adverse effects similar to those of arsenic trioxide. Methylarsonate was formerly included in some vitamin and mineral preparations. It was once used to treat tuberculosis, chorea, and other affections in which the cacodylates were used.

Capobenic acid is an antiarrythmetic agent, vasodilator, antianginal used for the treatment of cardiac infarction.

Dimetacrine is a tricyclic antidepressant. It has been used in the treatment of depressive states. Dimetacrine usage associates with risk of cardiovascular side effects.

Homofenazine (or Pasaden) is a psycho sedative drug, developed in Germany.

Anethole trithione or anetholtrithione is a drug used in the treatment of dry mouth. Anethole trithione is a bile secretion-stimulating drug that restores salivation. It is listed in the U.S. National Cancer Institute's Dictionary of Cancer Terms as being studied in the treatment of cancer. Anethol has also been identified as a treatment for improving medium and severe dry eye symptoms. The mechanism of action for the chemopreventive and xerostomia properties have not been fully elucidated.

Nitroxoline (8-hydroxy-5-nitroquinoline) has been used since 1962 in the treatment of urinary tract infections especially those due to gram negative bacilli (E. coli). Nitroxoline is active against most Gram-negative and –positive uropathogenic bacteria, against mycoplasmas (M. hominis, Ureaplasma urealyticum) and human pathogenic Candida spp. The mode of antibacterial and antifungal action is based on the ability of nitroxoline to chelate with various metallic bivalent cations. Nitroxoline is a fluorquinolone that is active against bacterial gyrases. This drug may also have antitumor activity by inhibition of type 2 methionine aminopeptidase (MetAP2) protein which is involved in angiogenesis. Nitroxoline induces apoptosis and inhibits glioma growth in vivo and in vitro. Due to the excellent anticancer activity and its well-known safety profile and pharmacokinetic properties, nitroxoline has been approved to enter into a phase II clinical trial in China for non-muscle invasive bladder cancer treatment

AMBUSIDE is a benzenesulfonamide-based diuretic used as an antihypertensive drug.