Diamfenetide (aka diamphenethide) is a fasiolicide used in sheep. It is effective against immature flukes but with diminishing activity as the fluke ages. It has proven an effective compound for use in prophylactic programs against Fasciola hepatica. Diamphenethide is deacetylated in the host liver to an active monoamine and diamine. The amine of diamfenetide has an action which produces an elevation of malate concentration in Fasciola. Malate is an intermediary product of glucose in this parasite. It is known that dopamine, a putative neurotransmitter in Fasciola has a protective effect against diamfenetide but the mode of action of a diamfenetide has yet to be defined in greater detail.

CYT997 (Lexibulin) is a wholly synthetic compound that possesses highly potent cytotoxic activity in vitro through inhibition of microtubule polymerization. CYT997 (Lexibulin) is a potent microtubule polymerization inhibitor with IC50 of 10-100 nM in cancer cell lines. CYT997 (Lexibulin) blocks the cell cycle at the G(2)-M boundary, and Western blot analysis indicates an increase in phosphorylated Bcl-2, along with increased expression of cyclin B1. Caspase-3 activation is also observed in cells treated with CYT997 (Lexibulin) along with the generation of poly(ADP-ribose) polymerase. The compound possesses favorable pharmacokinetic properties, is orally bioavailable, and is efficacious per os in a range of in vivo cancer models, including some refractory to paclitaxel treatment. CYT997 (Lexibulin) exhibits vascular disrupting activity as measured in vitro by effects on the permeability of human umbilical vein endothelial cell monolayers, and in vivo by effects on tumor blood flow. CYT997 (Lexibulin) possesses a useful combination of pharmacologic and pharmacokinetic properties having considerable potential as a novel anticancer agent. Lexibulin was being developed by YM BioSciences as a vascular-disrupting agent (VDA) for the potential treatment of cancer, it was in phase II development on YM BioSciences ' pipeline. It appears that the development of lexibulin has been discontinued.

Terbogrel, an agent having two pharmacodynamic actions, namely inhibition of thromboxane A2 synthase and antagonism of the thromboxane A2 receptor. The antithrombotic effect of terbogrel was dose-dependent and was associated with enhanced prostacyclin production. The drug was studied for the treatment of peripheral vascular disorders, pulmonary hypertension, and thrombosis. Terbogrel participated in phase II clinical trial to investigate its safety and efficacy in patients with primary pulmonary hypertension, however, this study was discontinued due to terbogrel’s induction of leg pain.

Mespiperone C-11 (3-N-[11C] methylspiperone) is a radiolabeled 3-N-methylspiperone. 3-N-methylspiperone is high-affinity D2/3 dopamine and 5-HT2A serotonin receptor antagonist. It has been studied as a positron emission tomography (PET) tracer for imaging D2/3 and 5HT2A receptor densities.

Dopamantine is the adamantine derivative. It combined elements of both amantadine and dopamine in its structure, shares some pharmacological effects of amantadine. Dopamantine is the anti-Parkinson drug, which has passed clinical trials. Dopamantine showed a high activity against Plasmodium berghei parasites that cause malaria.

Etoxeridine (Carbetidine or Wy2039), a piperidine derivative, is a narcotic analgetic.

Glyprothiazol (VK 57 or RP 2254) is a sulfonamide derivative. This compound lowers blood glucose levels by increasing the release of insulin from the pancreas. It stimulates insulin secretion through a direct action on pancreatic islets. Glyprothiazol was the first of oral hypoglycemic sulfonamides used in the treatment of type 2 diabetes mellitus.

Lifibrol is a hypocholesterolemic compound. The effect of lifibrol on serum cholesterol levels has been examined in several animal models and clinical trials. The efficacy of lifibrol in lowering total cholesterol, LDL cholesterol, and apo B is comparable to the 3-Hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors, the most potent lipid-lowering drugs known so far. In addition, lifibrol reduces serum triglycerides, lipoprotein (a), and fibrinogen. lifibrol acts synergistically upon key regulatory processes of cholesterol homeostasis: it reduces cholesterol absorption from the intestine, moderately decreases hepatic cholesterol biosynthesis and stimulates the expression of low density lipoprotein receptors, presumably by a sterol-independent mechanism. Lifibrol had been in phase II clinical trials for the treatment of hypercholesterolaemia. However, this study was discontinued. It has the potential to accumulate in the liver and induce hepatic peroxisome proliferation.

Elinogrel, previously known as PRT060128 or PRT128, is a direct-acting, reversible P2Y12 inhibitor for both intravenous and oral administration. Elinogrel has been tested in 2 phase II studies for the treatment of acute coronary syndrome, myocardial infarction and prevention of secondary thrombotic events. Elinogrel therapy was associated with an increased incidence of dyspnea and incidence of elevated liver transaminases. The development of the drug was terminated in January 2012 by Novartis.