Lyophilized LSD Orally Disintegrating Tablets for Stable Microdosing
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Solution Overview
Problem
There is a need for a commercially viable, stable, and uniform solid oral immediate release formulation of d-Lysergic Acid Diethylamide (LSD) that can be easily administered to a broad patient population, including the elderly and those with swallowing difficulties, while maintaining chemical stability and content uniformity, as existing formulations face challenges in achieving these criteria.
Innovation Solution
A solid oral immediate release formulation of LSD is produced by lyophilizing a flash frozen stock solution of LSD and excipients in a pre-formed mold to form an orally disintegrating tablet, incorporating non-gelling matrix formers, fillers, binders, buffers, and additional excipients such as antioxidants and permeation enhancers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If oral solution formulations are used for LSD, then patient convenience and ease of administration are improved, but product stability and supply chain requirements worsen due to potential cold chain storage needs
Solution Approach 1:
The patent transforms the physical state of LSD from liquid (oral solution) to solid (lyophilized tablet), fundamentally changing storage and stability parameters. The lyophilization process removes water and creates a stable solid dosage form that eliminates cold chain requirements while maintaining ease of administration through rapid disintegration in the mouth
Solution Approach 2:
The patent creates a composite lyophilized formulation combining LSD with excipients including matrix formers (hydroxypropyl methylcellulose, carbomer), fillers (microcrystalline cellulose, mannitol), and stabilizers (edetic acid disodium salt). This composite structure provides both stability and rapid disintegration properties
2Ease of manufacture
If direct compression is used to prepare ODTs, then manufacturing simplicity and cost are improved, but disintegration capacity worsens due to limitations from tablet size and hardness
Solution Approach 1:
The patent employs lyophilization (freeze-drying) which involves phase transitions from liquid to solid through sublimation. This process creates a porous, low-density solid structure that disintegrates rapidly in the mouth while maintaining manufacturing feasibility through direct compression of the lyophilized cake
Solution Approach 2:
The lyophilization process inherently creates a porous structure in the tablet matrix. This porosity, combined with the specific matrix formers used, enables rapid water uptake and disintegration while maintaining structural integrity during manufacturing and storage
3Speed
If high porosity and low density are achieved in ODTs, then dissolution rate and pre-gastric absorption are improved, but tablet hardness and structural integrity worsen
Solution Approach 1:
The patent uses a composite matrix system combining hydroxypropyl methylcellulose (provides structural framework), carbomer (provides binding and swelling), and microcrystalline cellulose (provides mechanical strength). This composite approach achieves the balance between porosity for rapid dissolution and sufficient hardness for handling
Solution Approach 2:
The formulation employs different excipients with specific local functions: matrix formers create the porous framework for rapid dissolution, while binders and fillers provide localized structural support. This spatial differentiation of material properties enables simultaneous achievement of softness for disintegration and sufficient hardness for integrity
4Quantity of substance
If LSD is formulated at therapeutic doses (10's to 100's of micrograms), then therapeutic effectiveness is improved, but achieving content uniformity and chemical stability worsens
Solution Approach 1:
The patent uses lyophilization to concentrate the LSD into a stable solid matrix, improving content uniformity through homogeneous distribution in the frozen state before drying. The low-temperature process prevents degradation and maintains chemical stability at therapeutic dose levels
Solution Approach 2:
The patent employs multiple excipients as intermediaries that facilitate uniform drug distribution: hydroxypropyl methylcellulose and carbomer form a homogeneous matrix that traps LSD molecules, while microcrystalline cellulose and mannitol provide a uniform scaffold. These intermediaries enable precise dosing at microgram levels
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 lyophilized orally disintegrating tablets provide rapid drug release, maintain chemical stability, and ensure content uniformity, making them suitable for various patient populations and overcoming challenges of previous formulations.
Implementation Method 1
A solid oral immediate release formulation of LSD is produced by lyophilizing a flash frozen stock solution of LSD and excipients in a pre-formed mold
Implementation Method 2
lyophilizing a flash frozen stock solution
Data Source
AI summary
A solid oral immediate release formulation of LSD, wherein the composition is produced by lyophilization of a feedstock in a pre-formed mold to form an orally disintegrating tablet. A method of making a solid oral immediate release formulation of LSD by lyophilizing a flash frozen stock solution of LSD and excipients, including a non-gelling matrix former, filler, and binder in a pre-formed mold, and forming an orally disintegrating tablet. A method of treating an individual by administering a solid oral immediate release formulation of LSD, wherein the composition is produced by lyophilization of a feedstock in a pre-formed mold to form an orally disintegrating tablet and treating the individual.