Oxantel is a narrow-spectrum anthelmintic effective against whipworms in dogs and cats. It is ineffective against other roundworms, flukes, tapeworms or external parasites. Oxantel acts on the nervous system of the worms as inhibitors of acetylcholinesterase. Oxantel, a cholinergic anthelmintic and fumarate reductase inhibitor, significantly inhibited biofilm formation by P. gingivalis and disrupted established biofilms at concentrations below its MIC against planktonic cells. Oxantel was more effective against P. gingivalis in biofilm than metronidazole, a commonly used antibiotic for periodontitis. When oxantel was administrated to human beings for the treatment of trichuriasis, no drug reaction or side effects were reported, and the results of hematologic, biochemical and urinary examinations didn’t reveal any significant drug-related changes.

QUININE PHOSPHATE, a salt of quinine, was formerly used for the treatment of malaria.

Cioteronel [CPC 10997, Cyoctol®, X-Andron] is an antiandrogen agent which was in phase II trials for androgenetic alopecia (male pattern baldness), and acne. It was also under development for the oral treatment of benign prostatic hyperplasia, but it was discontinued due to poor efficacy. CPC 10997 was found to be effective in vitro as an antiandrogen without effects on either the estrogen or the progesterone receptors in carcinomas of the breast, ovary and prostate as well as in malignant melanomas. CPC 10997 was found to be more effective against carcinomas of the breast, the kidney, the ovary and the prostate than conventional antineoplastic agents in the majority of tumors tested. The antineoplastic action of CPC 10997 appears to be the inhibition of RNA synthesis, but it has no detectable untoward effects on nonneoplastic cells, in vitro. Although it blocks competitively the binding of dihydrotestosterone (DHT) to its protein receptor, it has no significant effects on either estrogen or progesterone receptors. In view of the very favorable toxicology profiles and in vitro efficacy, further trials using CPC 10997 as an antineoplastic agent are indicated.

Repirinast is an antiallergic drug developed and introduced into the market in Japan in 1987. It is a histamine release inhibitor. It has demonstrated effectiveness for treating bronchial asthma in humans.

Lomifylline is a xanthine derivative with peripheral vasodilator action. Lomifylline in combination with dihydroergocristine (CERVILANE) is used in the treatment of vertigo of vascular origin.

Geocillin (carbenicillin indanyl sodium) is indicated in the treatment of acute and chronic infections of the upper and lower urinary tract and in asymptomatic bacteriuria. Geocillin is also indicated in the treatment of prostatitis due to susceptible strains of the following organisms: Escherichia coli Enterococcus (S. faecalis) Proteus mirabilis Enterobacter sp. Geocillin is acid stable, and rapidly absorbed from the small intestine following oral administration. It provides relatively low plasma concentrations of antibiotic and is primarily excreted in the urine. The antibacterial activity of Geocillin is due to its rapid conversion to carbenicillin by hydrolysis after absorption. Carbenicillin binds to penicillin-binding protein from corresponding bacteria. In April 2008, Pfizer has decided to discontinue the manufacturing of Geocillin (carbenicillin indanyl sodium). There are no other currently FDA approved manufacturers for carbenicillin tablets.

Vildagliptin, previously identified as LAF237, is a new oral anti-hyperglycemic agent (anti-diabetic drug) of the new dipeptidyl peptidase-4 (DPP-4) inhibitor class of drugs. Vildagliptin inhibits the inactivation of GLP-1 and GIP by DPP-4, allowing GLP-1 and GIP to potentiate the secretion of insulin in the beta cells and suppress glucaon release by the alpha cells of the islets of Langerhans in the pancreas. It is currently in clinical trials in the U.S. and has been shown to reduce hyperglycemia in type 2 diabetes mellitus. While the drug is still not approved for use in the US, it was approved in Feb 2008 by European Medicines Agency for use within the EU and is listed on the Australian PBS with certain restrictions. Vildagliptin is marketed under the trade names Galvus, Zomelis.

Gastrodin is the main bioactive component of Gastrodia elata Blume (G. elata). Tian Ma Su Zhu She Ye (contains Gastrodin) It is an extensively used in the clinical practice of traditional Chinese medicine, to treat neurasthenia, neurasthenia syndrome, angioneurotic headache disorder, traumatic brain syndrome, vertigo meniere disease, medicinal with dizziness, vertigo, sudden deafness, vestibular neuronitis, vertebral basilar artery blood supply deficiency, etc. Apart from traditional claims, scientific reports support the antioxidative, anticonvulsive, antiinflammatory, antiepileptic, antiobesity, anxiolytic, and learning and memory improvements in activities of gastrodin

Tilarginine is L-N-monomethyl arginine (L -NMMA), a non-selective inhibitor of nitric oxide synthase (NOS), which has been studied in the treatment of septic shock and cardiogenic shock complicating myocardial infarction. Despite strong evidence that excessive nitric oxide (NO) production plays a pivotal role in the pathogenesis of septic shock and may contribute to the pathogenesis of cardiogenic shock complicating myocardial infarction, outcome studies in these two disorders have proved disappointing. Tilarginine therapy was associated with an excess mortality, particularly at doses > 5 mg/(kg h), in septic shock, whereas the effects of a lower dose (1 mg/(kg h)) in cardiogenic shock complicating myocardial infarction were neutral. The excess mortality in patients with septic shock was almost certainly the result of unfavorable hemodynamic changes induced by Tilarginine (decreased cardiac output, increased pulmonary vascular resistance and reduced tissue oxygen delivery) whereas the lack of benefit in patients with cardiogenic shock complicating myocardial infarction may have been because the dose of Tilarginine was too low.

Chloral hydrate was discovered in 1832, and was used as a sedative in late 19th century. Chloral hydrate has not been approved by the FDA or the EMA, and is on the list of unapproved drugs that are prescribed for postoperative pain control, sedation and to prevent alcohol withdrawal and reduce anxiety associated with withdrawal of opiates or barbiturates. Mechanism of action of chloral hydrate is not known. It is generally believed that the central depressant effects are due to the principal pharmacologically active metabolite trichloroethanol, which has a plasma half- life of 8 to 10 hours, and acts by potentiating GABA-activated Cl currents.