FIDEXABAN is a potent inhibitor of coagulation factor Xa with anticoagulant activity. Like other factor Xa inhibitors, it prevents thrombus formation.

FEPITRIZOL is a hypnotic agent.

Adozelesin (U 73975, adolezesin) is an experimental antitumor drug of the duocarmycin class. Adozelesin is a highly potent alkylating agent that undergoes binding in the minor groove of double-stranded DNA (ds-DNA) at A-T-rich sequences followed by covalent bonding with N-3 of adenine in preferred sequences. Adozelesin is therapeutically active against a broad spectrum of tumours and was in phase II clinical trials with Pharmacia Corporation (now Pfizer) in the US for breast cancer treatment. Phase I and Phase II clinical trials were conducted in 2000s, however, it was found adozelesin had marginal efficacy in the treatment of metastatic breast cancer at the dosage and schedule used.

Taziprinone was studied as an antitussive agent. Information about the current use of this compound is not available.

Sunepitron (CP-93,393) is an anxiolytic drug with highly selective serotonin 5-hydroxytryptamine 1A autoreceptor agonist, alpha2-adrenergic antagonist, and dopamine D2 agonist properties. Sunepitron hydrochloride had been in Phase III clinical trials by Pfizer for the treatment of anxiety disorder and depression. However, this research has been discontinued.

Crisnatol is a derivative of arylmethylaminopropanediol with significant antineoplastic activity in a variety of murine and human tumor models. Crisnatol functions as a DNA intercalator, with the presence of additional basic amine groups in the sidechain enhancing binding to DNA due to electrostatic interactions. Crisnatol did not show antitumor efficacy in patients with ovarian carcinoma. In another clinical study, 2 of 26 patients with glioma showed complete long-lasting responses to the drug. The dose-limiting side effect was neurotoxicity.