Tips for Tablets

Poorly soluble drugs often exhibit low bioavailability due to limited dissolution in the gastrointestinal (GI) tract, resulting in reduced absorption and therapeutic efficacy. Enhancing bioavailability involves overcoming solubility and permeability barriers through innovative formulation and process techniques.
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Surface pitting in coated tablets refers to the formation of small depressions or craters on the tablet’s surface after coating. This defect can compromise the tablet’s appearance, functionality, and stability. Surface pitting typically arises from improper coating formulation, equipment settings, or environmental conditions during the coating process.
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Solvent selection plays a crucial role in the film-coating process, influencing coating quality, process efficiency, and tablet performance. The solvent determines the solubility of the coating materials, drying rates, and adhesion to the tablet core. Choosing the right solvent is critical for achieving uniform film coatings that meet regulatory and therapeutic requirements.
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Coated tablets exposed to high-temperature environments may experience physical and chemical changes that compromise their efficacy, appearance, and shelf life. These issues can include coating defects, API degradation, and moisture-induced damage, which affect the tablet’s quality and performance. Ensuring stability under such conditions is crucial for maintaining product integrity and regulatory compliance.
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Gloss on sugar-coated tablets enhances their visual appeal and signals high-quality manufacturing. Consistent gloss also indicates uniform coating thickness, proper application, and adherence to quality standards. Achieving a glossy finish can be challenging due to formulation, equipment, and process variables.
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API leaching occurs when the active pharmaceutical ingredient (API) migrates into the aqueous coating solution during the film-coating process. This can lead to reduced API content in the tablet core, inconsistent dosing, and compromised product quality. Addressing API leaching is essential to ensure drug efficacy, stability, and regulatory compliance.
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Coating uniformity ensures that each tablet has a consistent appearance, protection, and release profile. In high-speed tablet production, achieving uniform coating becomes challenging due to rapid processing and large batch sizes. Uneven coating can lead to product rejection, compromised drug performance, and regulatory non-compliance.
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Adhesion issues during the sugar-coating process arise when tablets stick to one another or to equipment surfaces. These problems can compromise the coating’s uniformity, appearance, and functionality, leading to defects like surface tearing or incomplete coating layers. Addressing these challenges is essential for producing high-quality sugar-coated tablets that meet regulatory and aesthetic standards.
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Enteric coating protects drugs from being released in the acidic environment of the stomach and ensures targeted delivery in the intestine. This coating is crucial for pH-sensitive APIs, drugs prone to gastric degradation, and formulations aimed at reducing gastric irritation. Optimizing the enteric coating process ensures precise drug delivery, improved stability, and enhanced therapeutic efficacy.
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Tablet granulation is a key process in pharmaceutical manufacturing that improves the flowability, compressibility, and uniformity of powders before they are compressed into tablets. This process ensures the production of high-quality tablets with consistent properties. Granulation techniques are essential for creating diverse formulations, including Immediate-Release Tablets, Film-Coated Tablets, Orally Disintegrating Tablets (ODTs), and advanced formulations like Compression-Coated Tablets.
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Managing moisture content is essential to ensure tablet stability in pharmaceutical manufacturing. Excessive moisture can cause tablets to soften, degrade, or lose efficacy, while insufficient moisture can lead to brittle and fragile tablets. This is especially critical for sensitive formulations like Immediate-Release Tablets, Film-Coated Tablets, and Orally Disintegrating Tablets (ODTs).
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Uneven coating in tablet coaters can compromise the appearance, stability, and release profile of pharmaceutical tablets. It often results from improper process parameters, equipment issues, or formulation inconsistencies. Identifying and addressing the root causes ensures high-quality coated tablets that meet regulatory and therapeutic standards.
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