Meladrazine is a drug used in urology as an antispasmodic. Meladrazine acts on the central nervous system as a polysynaptic inhibitor. Its usefulness in treating spasticity in patients with multiple sclerosis is well known. As many of these patients have bladder problems, a coincidental beneficial effect on uninhibited bladders has been discovered. Meladrazine caused a high incidence of side effects; therefore, treatment with terodiline separately is recommended for geriatric patients who have severe motor urge incontinence.

Mozavaptan hydrochloride was approved by Pharmaceuticals and Medical Devices Agency of Japan (PMDA) on July 26, 2006. It was developed and marketed as Physuline® by Otsuka in Japan. Mozavaptan hydrochloride is a vasopressin receptor antagonist. It is indicated for the treatment of hyponatremia due to excessive fluid retention when restriction of fluid intake is ineffective. Physuline® is available as film-coated tablet for oral use, containing 30 mg of Mozavaptan hydrochloride. The recommended dose is one tablet (30 mg) once daily after a meal.

Sucrosofate (sucrose octasulfate) is a class of organic compounds known as disaccharide sulfates carrying one or more sulfate group on a sugar unit. It is used to encapsulate some anticancer drugs in liposomes allowing for highly active formulations against solid tumors and immunotargeting to cancer-overexpressing cell surface receptors. ONIVYDE (liposomal irinotecan) for intravenous use encapsulates an aqueous space containing irinotecan in a gelated or precipitated state as the sucrose octasulfate salt was initially approved by FDA in 1996 for treatment of pancreatic cancer. Sucrose octasulfate (SOS), a chemical analogue of heparin, has been demonstrated to activate fibroblast growth factors signalling pathways and SOS-mediated dimerization of FGF1 was observed. SOS can suppress thrombin generation in plasma that suggests a potential for oversulfated disaccharides in controlling heparin cofactor II -regulated thrombin generation.

Piperaquine is a bisquinoline antimalarial drug that was first synthesized in the 1960s and used extensively in China and Indochina as prophylaxis and treatment during the next 20 years. Usage declined in the 1980s as piperaquine-resistant strains of P. falciparum arose and artemisinin-based antimalarials became available. However, during the next decade, piperaquine was rediscovered by Chinese scientists as one of a number of compounds suitable for combination with an artemisinin derivative. The rationale for such artemisinin combination therapies (ACTs) was to provide an inexpensive, short-course treatment regimen with a high cure rate and good tolerability that would reduce transmission and protect against the development of parasite resistance. Piperaquine is characterized by slow absorption and a long biological half-life, making it a good partner drug with artemisinin derivatives which are fast acting but have a short biological half-life.

Enviomycin, antimicrobial drug, was isolated in Japan from fermentation broth of Syteptomyces griseoverticillatus var tuberacticus. This drug, a water-soluble, basic peptide, is effective against tubercle bacilli as well as some gram-positive and gram-negative bacteria. It is related to viomycin and cepreomycin in some of its physicochemical properties. It is used for the treatment of Mycobacterium avium caused lung diseases.

Bucladesine is a cyclic nucleotide derivative which mimics the action of endogenous cAMP and is a phosphodiesterase inhibitor. The compound is used in a wide variety of research applications because it mimics cAMP and can induce normal physiological responses when added to cells in experimental conditions. cAMP is only able to elicit minimal responses in these situations. The neurite outgrowth instigated by bucladesine in cell cultures has been shown to be enhanced by nardosinone. Recently, the effect of bucladesine as a cAMP analog has been studied on the pentylenetetrazol-induced seizure in the wild-type mice. The data showed that bucladesine (300nM/mouse) reduced the seizure latency and threshold. In addition they found that combination of bucladesine and pentoxyfillin has additive effect on seizure latency and threshold. Bucladesine is more lipophilic than cAMP and in contrast to cAMP capable of penetrating cell membranes. Bucladesine interferes with different protein kinases which are normally activated by cAMP. Bucladesine has undergone in the past clinical developments as systemic treatment for cardioprotection and as topical treatment to improve wound healing. In Japan, a bucladesine ointment (Actosin® ointment; Daiichi Pharmaceutical Co., Ltd., Tokyo, Japan) was marketed to treat skin ulcers. Clinical studies have shown favourable effects on diabetic foot ulcers or decubitus, but the compound was later withdrawn despite good tolerability. One possible reason for the withdrawal may be the odour of the cream formulation which can be related to the hydrolytic cleavage in aqueous solutions resulting in release of butyric acid.

Lenampicillin is a prodrug of ampicillin that inhibits bacterial penicillin binding proteins (transpeptidase) and thus is effective against a wide range of bacterial infections. The drug was developed and marketed in Japan (Takacillin, Varacillin), however its current marketing status is unknown and supposed to be discontinued.

Bucumolol is a beta-adrenergic antagonist. It can be used in the treatment of myocardial ischemia and hypertension.

Indium sulfate (In2(SO4)3) is a grayish-white powder. It is hydroscopic and has a monoclinic crystal structure. Indium sulfate is being marketed as the newest miracle dietary supplement and is falsely advertised as a dietary aid as an enhancer of food and mineral absorption, an anti-aging supplement, a blood pressure lowering supplement. There is no scientific support for claims that indium has beneficial effects. Indium sulfate can cause the accumulation of indium in the kidney, oxidative damage, pathological changes and dysfunction in the kidney of rats.

Improsulfan was investigated as effective agent against nitrogen mustard-resistant Yoshida sarcoma cells