Danitracen (WA 335) is an antidepressant compound developed in the 1970s. Danitracen acts by blocking central and peripheral 5-HT receptors: it potentiates testosterone-induced sexual behavior in rats and abolishes the 5-hydroxytryptophan (5-HTP) induced hypermotility in mice. In amphetamine-treated rats, administration of danitracen lowered whole brain serotonin and norepinephrine levels. Danitracen investigated in clinical trials in depressed patients. At 3 mg/day, danitracen was equipotent to 150 mg/day amitriptyline.

Pyrimitate is a pyrimidinyl thiophosphate derivative patented by Imperial Chemical Industries Ltd. as an insecticide and acaricide

Mesocarb (sydnocarb or 3-(beta-phenylisopropyl)-N-phenylcarbamoylsydnonimine) is a psychomotor stimulant N-alkylated amphetamine derivative. Mesocarb is a selective inhibitor of dopamine uptake, it potently blocks dopamine transporter. It is very likely that mesocarb is being used by drug addicts. Mesocarb is included in the World Anti-Doping Agency’s list of substances and methods that are prohibited in sports. It is used in Russia for the treatment of a variety of neuropsychiatric comorbidities.

Modithromycin (EDP-420, EP-013420, S-013420) is 6-11-bicyclic erythromycin derivative patented by Enanta Pharmaceuticals, Inc as an antibacterial agent. In preclinical studies, Modithromycin exhibited high levels of in vitro activities against N. gonorrhea, including isolates resistant to azithromycin, cefixime, ceftriaxone, spectinomycin, ampicillin, tetracycline, and ciprofloxacin. Modithromycin also has the good in vivo efficacy against S. pneumoniae and H. influenzae, which might be due to its lasting intracellular activity. In healthy adults, clinical trials Modithromycin shows long half-life and its high systemic exposure. Modithromycin was well tolerated, with no serious or severe adverse events reported, and no subject was discontinued from the study due to an adverse event. In 2005 Modithromycin was studied in phase II clinical trials but no further development reports were published.

Mitemcinal (GM-611), an erythromycin-derived prokinetic agent, was developed by Chuga as an agonist of the motilin receptor. Mitemcinal acts by a novel mechanism whereby it stimulates and promotes peristalsis in the stomach and other segments of the gastrointestinal tract. This drug was studied as a potential treatment for gastric motility disorder, as well as reflux esophagitis, non-ulcer dyspepsia, and diabetic gastroparesis. Mitemcinal was involved in phase II clinical trials in Patients with diabetic gastroparesis. Although gastroparetic symptoms improved with both mitemcinal and placebo, the prominent placebo effect was not statistically exceeded by mitemcinal. That is why the development of this drug has stalled. In addition, mitemcinal has been studied in phase II for the treatment of irritable bowel syndrome, but this study was also discontinued.

Mezilamine is a dopamine antagonist, it blocks presynaptic but stimulates postsynaptic alpha-adrenoceptors. Potential antipsychotic drug.

Cefetrizole is aminocephalosporanic acid derivative with broad antibacterial activity against penicillin-resistant strains patented by Spanish pharmaceutical company Ferrer Internacional S. A.