Solid/Semi-Solid Dosage

Generally, tablet and capsule film coatings are applied as aqueous or organic-based polymer solutions or dispersions, graduate student Sagarika Bose (University of Connecticut) explained during her Tuesday AAPS Graduate Student Symposium presentation, "Development and Evaluation of Solventless Photocurable Pharmaceutical Film Coating." However, organic film coatings can be flammable, toxic, and must comply with strict environmental regulations. Aqueous film coating can lead to the degradation of certain drugs by heat and water.

The common crystal form of ibuprofen was changed to optimize processing and manufacturing properties. Six modified crystal forms were prepared and assessed for dissolution, morphology, particle size, density, thermal characteristics, powder x-ray diffractometry, flow properties, and tabletability.

A radiotracer technique is a simple, fast, and sensitive technique for analyzing the integrity of clinical supply packages to water.

This review article discusses orally disintegrating tablets and their manufacturing technologies, development issues, and future trends.

Although agitation improves drying efficiency and ensures uniformity of the final dry material, it can also affect the physical properties of the product as it dries. This study evaluates the effect of scale up and equipment selection on an active ingredient undergoing granulation during the drying process.

Pharmaceutical science and technology innovation

The tablet formation of six different carrageenans was analysed by 3D modelling, Heckel analysis, the pressure–time function and energy calculations. It was found that the fibres experienced plastic deformation, which was accompanied by a great deal of elasticity. Measurement of elastic recovery in dependence on maximum relative density and time showed that relaxation is completed a considerable amount of time after tabletting. Shrinking of the fibres occurred in parallel with elastic recovery as a result of the reorganization of the fibre structure. The tabletting behaviour of carrageenans makes them suitable for the soft tabletting of pressure sensitive materials.

Being the first to gain the most is a fundamental principle in the generics business because several companies compete to create generics of successful products going off patent. For a generics company to maintain revenue growth in a market in which product prices continue to fall, it must secure a continuous flow of new products, with quality and speed to market being key drivers. Thus, generics companies must be highly skilled in product and process development (1), the generics business, and achieving bioequivalence-the most critical development area.

Various systems and measures can be used to safely handle and process explosive pharmaceutical compounds in a range of manufacturing procedures.

The aim of this study was to analyse the process of tablet formation and the properties of the final tablets for six different carrageenans. The carrageenans used were based on the basic types of ?-, ?- and ?-carrageenan. Microcrystalline cellulose was used for comparison. Determination of material properties, compression analysis and tablet properties were described. Water content, particle size and morphology, glass transition temperature, and crystallinity were studied. The results show that the carrageenans are predominantly amorphous fibres, which are in the rubbery state during tabletting.

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A stepwise, process risk-assessment approach can facilitate the identification and understanding of critical process parameters, quality attributes, and in-process controls. This approach can lead to more use of science- and risk-based regulatory practices to simplify the regulatory requirements for changes to synthetic processes and to support the underlying quality systems that ensure compliance.

Self-Assembly Nanotechnology Improves Microencapsulation

Once considered mainly an afterthought in a company's lifecycle-management strategy, controlled-release dosage forms are now positioned at the forefront of many formulation strategies. In contrast to drug discovery, formulation work focuses not only on the intricacies of the active pharmaceutical ingredient (API), but also on fine-tuning the excipients, the release profile, and the delivery mechanism to provide optimal therapeutic benefit. Because of their wide range of applications and functionalities, especially in controlled-release therapies, polymers are among the most widely used excipients.

Wet granulation is a size-enlargement process in which a liquid is used to achieve the agglomeration of solid particles. Agglomeration improves particles' tableting properties by rendering them free-flowing, nonsegregating, and suitable for compression (1).

The principles of direct compression haven’t changed in more than a century. So why can the topic still pack a ballroom?

X-ray microtomography has great potential for improving the understanding of the structural features of solid dosage forms and the changes in those features during manufacturing, handling, and storage.This article describes the basic principles of the technique and provides examples of its potential applications.

To meet the requirements of the USP ^755& Minimum Fill and ^698& Deliverable Volume tests, target fill levels greater than 100% must be established.This article proposes a criterion for establishing an appropriate target fill level such that a sample will have a 95% probability of passing these USP tests at 95% confidence.

The authors study the effects of sweet potato and cocoyam starches on the compressional and mechanical characteristics of a paracetamol tablet formulation using cornstarch BP.

X-ray microtomography has great potential for improving the understanding of the structural features of solid dosage forms and the changes in those features during manufacturing, handling, and storage. This article describes the basic principles of the technique and provides examples of its potential applications.

Big Pharma Companies Team Up to Develop Once-Daily, Triple-Combination HIV Drug

New fixed-dose combination drugs aim to enhance safety and efficacy, while regulators clear a path for more drug–device combination products.

The author points out some major obstacles to effective scale-up and describes methods available to pharmaceutical scientists for addressing scalability issues.

In the manufacture of many pharmaceutical products, dry-particle blending is a critical step that directly affects content uniformity.

Extrusion-spheronization and pellet compression are effective means of developing first-order kinetic, controlled-release drug delivery systems of azithromycin (AZI). The authors prepared, evaluated, and optimized AZI formulations and assessed the stability of the selected formulation under accelerated storage conditions.

Pharmaceutical Science & Technology Innovations

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