Transdermal Cream Base Composition for High Drug Loading
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Solution Overview
Problem
Conventional transdermal creams have limitations such as low absorption rates and stability issues, particularly with high active ingredient concentrations and exposure to environmental extremes, which affect their efficacy in pain management.
Innovation Solution
A transdermal cream with a unique base composition that supports high active ingredient concentrations (over 30% salt load) and maintains stability for six months or longer, capable of effective delivery and absorption of multiple medications like ketamine, gabapentin, and clonidine, even under extreme temperatures, through enhanced permeation and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional transdermal creams are used to deliver medication, then they can be applied topically to the skin, but they exhibit low absorption rates and cannot support high concentrations of active ingredients
Solution Approach 1:
The patent changes the physical and chemical parameters of the base composition, including using specific emulsifiers, oils, and waxes in optimized ratios, and adjusting pH and viscosity, to enable high active ingredient concentrations (30-70%) while maintaining skin penetration effectiveness and stability
Solution Approach 2:
The patent creates a composite base composition combining multiple components (emulsifiers, oils, waxes, active ingredients) in specific ratios that work synergistically to achieve both high drug loading capacity and effective transdermal delivery, with the base acting as a vehicle that maintains stability while facilitating penetration
2Quantity of substance
If conventional transdermal creams include high concentrations of active ingredients, then the medication potency increases, but the cream becomes unstable and separates when exposed to environmental extremes
Solution Approach 1:
The patent optimizes parameters including pH (adjusted to specific ranges), viscosity (through controlled addition of thickeners), and emulsion structure (using specific HLB values of emulsifiers) to maintain physical stability and prevent separation even at high active ingredient concentrations and under temperature variations
Solution Approach 2:
The patent introduces intermediary substances including stabilizers, chelating agents, and protective colloids that act as mediators between the active ingredients and the base composition, preventing incompatibility and separation while allowing high concentrations of medication to remain stably dispersed
3Adaptability or versatility
If conventional transdermal creams are formulated with multiple medications, then they can address multiple ailments, but the formulation becomes complex and absorption of individual ingredients decreases
Solution Approach 1:
The patent creates a universal base composition designed to simultaneously deliver multiple different active ingredients (NSAIDs, muscle relaxants, opioids, local anesthetics, antidepressants, nerve depressants) through a single formulation, with the base structure optimized to facilitate penetration of various drug classes without requiring separate formulations for each medication type
Solution Approach 2:
The patent applies different principles to different components within the same formulation, using specific emulsifiers for water-soluble drugs, different solubilizing techniques for oil-soluble medications, and targeted penetration enhancers for specific drug classes, allowing each active ingredient to be optimized for its own properties while maintaining a unified stable formulation
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 transdermal cream achieves significant permeation of active ingredients beyond the stratum corneum, providing effective pain management with minimal side effects and reduced drug-drug interactions, suitable for various ailments including pain, inflammation, and muscle fatigue.
Implementation Method 1
The transdermal cream may provide for greater than approximately 50% permeation of ketamine beyond the stratum corneum after a single dose is administered topically via the base composition. The transdermal cream may facilitate a maximum mean flux of greater than approximately 3.5 μg/cm2/hr of percutaneous absorption of ketamine through the human skin
Data Source
AI summary
The present embodiments relate to topically delivered medication (compounded) for treatment of pain, inflammation, muscle fatigue, spasms, and/or other ailments. A transdermal cream may provide the effective topical administration of multiple medications simultaneously. The transdermal cream may include a salt load of approximately 30% or greater. The transdermal cream may include a unique base composition such that the transdermal cream may be able to remain stable and avoid degradation for six months or more and capable of effective delivery of active ingredient concentrations exceeding approximately 40% or more of the total formulation weight. The active ingredients may include a nerve depressant, NSAID, muscle relaxant, opiate agonist, local anesthetic, NMDA receptor antagonist, and a tricyclic antidepressant. In one embodiment, the transdermal cream may comprise ketamine HCL, gabapentin, clonidine HCL and baclofen. The transdermal cream may deliver an enhanced topical delivery flux of ketamine via a single transdermal application.