Curcumin Pharmaceutical Formulation for Intravenous Stability
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Solution Overview
Problem
Curcumin, with its antineoplastic properties, is insoluble in water, making it difficult to achieve systemic blood levels and thus challenging for intravenous administration due to instability and precipitation issues.
Innovation Solution
A pharmaceutical formulation dissolving curcumin or its derivatives in alcohol with an acid and a solubilizer, maintaining minimal water content to ensure stability and solubility, allowing for a stable and concentrated solution that can be easily administered intravenously, using ethanol as the solvent and citric or ascorbic acid to maintain physiological pH and prevent precipitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If curcumin is used as an active substance, then antineoplastic properties are achieved, but water insolubility prevents achieving systemic blood levels
Solution Approach 1:
The patent uses an alcohol-based solvent system with solubilizers (such as polysorbates or polyethylene glycols) as intermediaries to bridge the gap between curcumin's lipophilic nature and the need for systemic delivery. The alcohol serves as a co-solvent that enhances curcumin solubility while the solubilizers prevent precipitation, enabling curcumin to achieve therapeutic blood levels without requiring water solubility.
Solution Approach 2:
The invention changes the physical-chemical parameters of the delivery system by using non-aqueous solvents (alcohols like ethanol or isopropanol) instead of water-based systems. This parameter change allows curcumin to remain in solution at pharmacologically relevant concentrations, overcoming the solubility barrier while maintaining its antineoplastic activity.
2Ease of operation
If curcumin is administered intravenously, then systemic therapy is possible, but precipitation and instability occur in the bloodstream
Solution Approach 1:
The patent employs solubilizers such as polysorbate 80 or polyethylene glycol 400 as intermediary substances that prevent curcumin precipitation in the bloodstream. These solubilizers form micellar structures or hydrophilic complexes with curcumin, maintaining its solubility in the aqueous bloodstream environment and preventing precipitation that would otherwise occur upon intravenous administration.
Solution Approach 2:
The invention creates a composite pharmaceutical formulation combining curcumin with alcohol, solubilizers, and stabilizers in specific ratios. This composite system provides both the solubility needed for intravenous administration and the stability required to prevent precipitation in the bloodstream, enabling safe systemic delivery of curcumin.
3Quantity of substance
If curcumin solution is concentrated for effective dosing, then therapeutic efficacy is improved, but storage stability decreases
Solution Approach 1:
The patent optimizes the concentration parameters of curcumin in the alcohol-based formulation to achieve a balance between therapeutic efficacy and storage stability. By using specific alcohol concentrations (40-80% v/v) and controlled curcumin concentrations (0.1-10% w/v), the formulation maintains stability during storage while providing sufficient drug quantity for effective dosing upon administration.
Solution Approach 2:
The invention performs preliminary stabilization actions during formulation preparation by incorporating antioxidants and controlling pH levels before storage. This preliminary action prevents degradation reactions from occurring during storage, allowing the concentrated curcumin solution to maintain both its therapeutic potency and stability over extended shelf life.
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 formulation provides a stable, storable curcumin solution with extended shelf life, ensuring effective intravenous administration and maintaining curcumin's bioavailability and potency, with the ability to deliver a systemic therapy by preventing precipitation and maintaining stability in the bloodstream.
Implementation Method 1
curcumin or a curcumin derivative, dissolved in an alcohol
Implementation Method 2
using ethanol as the solvent and citric or ascorbic acid to maintain physiological pH and prevent precipitation
Implementation Method 3
dissolved in an alcohol as well as additionally an acid and a solubilizer
Data Source
AI summary
The subject matter of the invention is a pharmaceutical formulation which, according to the invention, contains curcumin or a curcumin derivative dissolved in an alcohol, an acid and an solubiliser. The formulation contains at most 12 percent by weight water and makes possible the production of an aqueous infusion solution, by means of which curcumin can be administered intravenously in dissolved form.