Crystalline Molecular Complexes Generated between Surfactants and Various Additive Compounds: An Attempt to Modify Sparingly Water Soluble Drugs to Easily Water Soluble Drugs.

[Crystalline molecular complexes generated between surfactants and various additive compounds: an attempt to modify sparingly water soluble drugs to easily water soluble drugs].

It has been established that ionic surfactants, whether cationic or anionic, provide crystalline molecular complexes stably with various aromatic compounds as additives. Among various additives phenolic compounds are especially favorable for both surfactant species. Other than these additives, cationic surfactants easily provide crystalline molecular complexes with basic materials and even with...

Solid Dispersions: An Overview To Modify Bioavailability Of Poorly Water Soluble Drugs

Inclusion complexes of poorly water-soluble drugs with glucosyl-cyclodextrins.

glucosyl-ƒ¿-CD (G-ƒ¿-CD), 6-O-ƒ¿-D-glucosyl-ƒÀ-CD (G-ƒÀ-CD), and 6A,6D-di-O-ƒ¿-D-glucosyl-ƒÀ-CD (2G-ƒÀ-CD) with slightly soluble or insoluble drugs in aqueous solution and in the solid state was studied by the solubility method, ultraviolet spectroscopy, and differential scanning calorimetry. These glucosyl-CDs were capable of forming inclusion complexes with compounds which can form complexes ...

An update to the toxicological profile for water-soluble and sparingly soluble tungsten substances

Tungsten is a relatively rare metal with numerous applications, most notably in machine tools, catalysts, and superalloys. In 2003, tungsten was nominated for study under the National Toxicology Program, and in 2011, it was nominated for human health assessment under the US Environmental Protection Agency's (EPA) Integrated Risk Information System. In 2005, the Agency for Toxic Substances and D...

Hydrotropic solubilization of poorly water-soluble drugs.

The solubilizing ability of two aromatic hydrotropes, N,N-diethylnicotinamide (DENA) and N,N-dimethylbenzamide (DMBA), was investigated using a set of 13 poorly soluble, structurally diverse drugs. The number of aromatic rings in the solute molecule has a very strong effect on the solubility enhancement produced by either hydrotrope. However, although solubility enhancements in the order of 100...