Abuse-Deterrent Organic Acid Salts for ADHD Medication
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Solution Overview
Problem
Current pharmaceuticals for ADHD, such as methylphenidate and amphetamine, are prone to abuse and misuse due to their psychoactive effects, leading to diversion and misuse, necessitating the development of formulations that are less susceptible to abuse and dose dumping while maintaining therapeutic efficacy.
Innovation Solution
The development of organic acid addition salts of methylphenidate and amphetamine with abuse-deterrent properties, which alter their hydrophilic and lipophilic balance through chemical derivatization, providing a controlled release profile and resistance to dissolution in low pH environments, thereby reducing the likelihood of abuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pharmaceutical formulations (methylphenidate and amphetamine) are used for ADHD treatment, then therapeutic efficacy is achieved, but the medications are highly susceptible to abuse and dose dumping due to their psychoactive effects
Solution Approach 1:
The patent introduces an intermediary substance (organic acid addition salt) that mediates between the active pharmaceutical ingredient and the body. This salt form acts as a protective layer that prevents direct abuse while still allowing therapeutic effect, thereby resolving the contradiction between maintaining efficacy and preventing abuse
Solution Approach 2:
The patent changes the chemical parameters of the pharmaceutical compound by forming organic acid addition salts. This chemical transformation alters the dissolution characteristics and bioavailability profile, making the medication less susceptible to abuse while preserving therapeutic effects through controlled release parameters
2Object-affected harmful factors
If formulations are modified to deter abuse and dose dumping, then abuse susceptibility is reduced, but the complexity of the pharmaceutical formulation increases
Solution Approach 1:
Instead of adding complex mechanical or chemical barriers, the patent achieves abuse deterrence through parameter changes in the chemical structure itself. By selecting specific organic acids and controlling salt formation parameters, the formulation gains abuse-resistant properties without requiring complex device structures
Solution Approach 2:
The patent creates a composite chemical structure by combining the active pharmaceutical ingredient with organic acid salts. This composite approach integrates multiple functions (therapeutic effect, controlled release, abuse deterrence) into a single unified molecular structure, avoiding the need for separate complex systems
3Manufacturing precision
If organic acid addition salts are used to control release profile, then dissolution control is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The organic acid addition salt is prepared in advance as a pre-formed compound before final formulation. This preliminary preparation allows for controlled dissolution characteristics to be built into the material itself, simplifying the subsequent manufacturing process while maintaining precise dissolution control
Solution Approach 2:
The patent optimizes dissolution control by adjusting parameters of the organic acid salt formation process. By controlling the stoichiometry, pH conditions, and mixing parameters during salt formation, precise dissolution profiles are achieved without requiring complex multi-step manufacturing processes
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 organic acid addition salts effectively deter abuse and dose dumping, ensuring the medication's therapeutic benefits are maintained while minimizing the risk of misuse, aligning with regulatory requirements and enhancing bioavailability through optimized dissolution profiles.
Implementation Method 1
The development of organic acid addition salts of methylphenidate and amphetamine with abuse-deterrent properties, which alter their hydrophilic and lipophilic balance through chemical derivatization
Implementation Method 2
providing a controlled release profile and resistance to dissolution in low pH environments, thereby reducing the likelihood of abuse
Data Source
AI summary
A pharmaceutical composition comprising a drug substance consisting essentially of a pharmaceutically acceptable organic acid addition salt of an amine containing pharmaceutically active compound wherein the amine containing pharmaceutical active compound is selected from the group consisting of racemic or single isomer ritalinic acid or phenethylamine derivatives and the drug substance has a physical form selected from amorphous and polymorphic.