Volinanserin (MDL-100,907) is a highly selective 5-HT2A receptor antagonist. It is widely used in scientific research to investigate the function of the 5-HT2A receptor. Volinanserin is also being trialed as a potential antipsychotic, antidepressant and treatment for insomnia. Volinanserin (M-100907) was in phase III trials for chronic schizophrenia. In August 1999, development was discontinued for acute schizophrenia (schizoaffective disorder) on the basis of poor results. M-100907 is also active in animal models involving blockade of NMDA glutamatergic channel receptors, an effect known to resemble some behavioral symptoms of schizophrenia in man. M-100907 is also claimed in other patents for the treatment of thromboembolic disorders, for the treatment of various developmental neurological disorders such as autism and attention deficit hyperactivity disorder.

Veliparib (ABT-888) is a potent inhibitor of PARP, has good oral bioavailability, can cross the blood-brain barrier, and potentiates temozolomide, platinums, cyclophosphamide, and radiation in syngeneic and xenograft tumor models. AbbVie is developing veliparib for the treatment of cancers. Clinical trials are underway worldwide, investigating veliparib primarily as part of a combination therapy in oncology indications such as brain, colorectal, melanoma, ovarian, prostate and pancreatic cancers.

Algestone is a progesterone like female hormone. Algestone is a C21-steroid that is pregn-4-ene substituted by oxo groups at position 3 and 20 and hydroxy groups at positions 16 and 17. It has a role as a progestin. It is a 20-oxo steroid, a 16alpha-hydroxy steroid, a 17-hydroxy steroid, a C21-steroid, a 3-oxo-Delta(4) steroid and a tertiary alpha-hydroxy ketone. It derives from a hydride of a pregnane. Algestone is used as anti-inflammatory drug (topical) and combination with enanthate as injectable contraceptive.

Ganglefene is a coronary vasodilator. This n-cholinoblocker was originally studied for its effects on coronary circulation in angina pectoris. Animal studies have also shown shortened recovery period of motor functions after ganglefene administration. One rodent study showed that modulation of the n-cholinergic system by ganglefene in the developing fetal brain leads to changes in the quantitative and qualitative characteristics of elements of sexual behavior in pubescent offspring.

Masilukast (ZD 3523) is an antagonist of leukotriene D4 (LTD4). It opposes LTD4-induced bronchoconstriction. It was being developed for the treatment of asthma.

Narlaprevir (formerly SCH 900518), a NS3 protease inhibitor is being developed by R-Pharm for the treatment of a chronic hepatitis C (genotype 1). Narlaprevir is a potent inhibitor of hepatitis C virus (HCV) NS3 protease with a Ki of 7 ± 1 nM and a 90% inhibitory concentration (IC90) of ∼28 ng/ml for HCV genotype 1 replicon in vitro. Narlaprevir successfully passed extensive pre-clinical and clinical trials in Schering-Plough Research Institute (USA) and in a variety of clinical centers of Europe, USA and Russia. Based on clinical findings R-Pharm obtained a registration certificate for Arlansa (Narlaprevir) ЛП-003622 dd 12.05.2016 issued by Ministry of Healthcare of the Russian Federation.

Truxipicurium, a derivative of alpha-truxillic acid, a curare-like drug, is a neuromuscular blocking agent with rigid structure.

Japan Tobacco developed JTV-519 (known also as K201) as an antiarrhythmic agent. This drug was in Phase II trials for the potential treatment of Atrial Fibrillation, but study was terminated. In experimental myofibrillar overcontraction models, JTV-519 demonstrated greater cardioprotectant effects than propranolol, also, this drug investigated against heart failure, but then these researches have been discontinued. In addition, K201 was in phase II clinical trial for investigation its topical implementation for Atopic Dermatitis. The mechanism of its action is both complex and controversial, known that it is a non-specific blocker of sodium, potassium and calcium channels (multiple-channel blocker). It is believed to stabilize the closed state of the RyR2 (cardiac ryanodine receptor) by increasing its affinity for the FKBP12.6 (12.6 kDa FK506 binding protein), in addition was suggested, that suppression of spontaneous Ca2 release and the activity of RyR2 contributes, at least in part, to the anti-arrhythmic properties of K201.

Dioxethedrin is the ephedrine derivative. It is the beta-adrenergic agonist. As a bronchodilator and sympathomimetic agent is was used in antitussive syrup Bexol.