Development and formulation of itraconazole capsule by using reliable dispersion technique for solubility enhancement

Solid dispersions enhance the bioavailability and dissolution rate of the drugs by increasing the solubility of low soluble drugs. Different methods are employed in the preparation of Solid Dispersions such as kneading technique, co-precipitation technique, hot-melt extrusion technique, fusion technique, solvent technique, etc. Solid Dispersions has used various types of carriers to enhance the solubility of low soluble drugs. In this paper to overcome the drawback of adaptive solid diffusion methods and also to recover the bioavailability of itraconazole without crystalline change, we have used the following itraconazole, poloxamer, Sporanox, citric acid and PVP to prepare the solid diffusions. Itraconazole, poloxamer, Sporanox chemical are supplied by the various chemical supplier like Hemmi Pharma, BASF Chemical, Korea-Hanssen Pharm respectively. Solid diffusion the properties of carters on the solubility of itraconazole has experimented. Also, the dissolution and stability have been investigated and evaluated with commercial chemicals such as Sporanox which consist of 100 mg itraconazole. Hence it is crucial to show the changes in a crystalline form of the drug for a minimum of 6 months to shows the stability of the presented dispersion approach. Thus, developed formulation shows the importance of solubility without crystalline change by improving the bioavailability and increased the solubility of the drug.

Cyclodextrins and ternary complexes: technology to improve solubility of poorly soluble drugs

Cyclodextrins (CDs) are cyclic oligosaccharides composed of D-glucopyranoside units linked by glycosidic bonds. Their main property is the ability to modify the physicochemical and biological characteristics of low-soluble drugs through the formation of drug:CD inclusion complexes. Inclusion complexation requires that host molecules fit completely or partially within the CD cavity. This adjustment is directly related to the physicochemical properties of the guest and host molecules, easy accommodation of guest molecules within the CD cavity, stoichiometry, therapeutic dose, and toxicity. However, dosage forms may achieve a high volume, depending on the amount of CD required. Thus, it is necessary to increase solubilization efficiency in order to use smaller amounts of CD. This can be achieved by adding small amounts of water-soluble polymers to the system. This review addresses aspects related to drug complexation with CDs using water-soluble polymers to optimize the amount of CD used in the formulation in order to increase drug solubility and reduce dosage form volume.