Moisture Resistant Packaging for Rapidly Disintegrating Diclofenac Potassium Tablets
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Solution Overview
Problem
Current solid oral dosage forms, such as tablets and capsules, face challenges in achieving rapid bioavailability, particularly for acute pain medications like diclofenac potassium, due to factors like disintegration/dissolution time, stability, and solubility in the gastrointestinal tract, leading to delayed absorption and reduced effectiveness.
Innovation Solution
Formulating diclofenac potassium tablets for rapid disintegration and dissolution by limiting moisture uptake during storage, using moisture-resistant packaging to prevent more than 2.0 wt.% moisture absorption in three months at 40°C and 75% relative humidity, resulting in tablets that disintegrate faster and maintain hardness, thereby enhancing bioavailability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If tablets are formulated for rapid disintegration and dissolution, then bioavailability is improved, but moisture uptake increases causing tablets to soften and disintegrate slower
Solution Approach 1:
The patent applies preliminary anti-action by pre-packaging tablets in moisture-resistant containers before they are exposed to humid environments. This prevents moisture uptake in advance, counteracting the natural tendency of rapidly disintegrating tablets to absorb moisture and soften, thereby maintaining their rapid disintegration capability throughout storage and use.
Solution Approach 2:
The patent converts the harmful effect of moisture uptake (which causes softening and slower disintegration) into a beneficial storage characteristic. By using moisture-resistant packaging, the tablet's tendency to absorb moisture is prevented, and the packaging itself becomes the protective element that maintains tablet hardness and rapid disintegration properties during storage.
2Stability of the object's composition
If tablets are protected from moisture during storage, then physical stability is improved, but disintegration time increases
Solution Approach 1:
The patent introduces an intermediary element - the moisture-resistant container - that mediates between the tablet and the humid environment. This intermediary packaging system allows the tablet to maintain physical stability during storage while preserving its inherent rapid disintegration capability, as the container prevents moisture uptake that would otherwise cause softening.
3Ease of manufacture
If standard packaging is used, then manufacturing simplicity is maintained, but bioavailability is reduced due to moisture absorption
Solution Approach 1:
The patent applies parameter changes by modifying the packaging parameters - specifically using containers with moisture resistance properties exceeding standard packaging. This parameter change in the packaging system ensures that moisture uptake is limited to less than 2.0 wt.% after three months, thereby maintaining tablet hardness and rapid disintegration, and consequently ensuring reliable bioavailability without significantly complicating the manufacturing process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The approach results in diclofenac potassium tablets that disintegrate in less than ten minutes, providing rapid bioavailability with a single peak blood concentration, improved stability, and reduced variability in absorption times, compared to commercial formulations.
Implementation Method 1
packaging said tablet in a moisture resistant bottle that prevents said tablet from absorbing more than 2.0 wt. % moisture in three months when stored at 40° C. and 75% relative humidity
Data Source
AI summary
Provided are rapidly bioavailable solid oral dosage forms of acute pain medications, and moisture resistant packaging that enables the formulation of such rapidly bioavailable dosage forms.