Specialized Lyophilized Phenobarbital Compositions for Niche Environments

Publication ID: 24-11857683_0009_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Specialized Lyophilized Phenobarbital Compositions for Niche Environments,” Published Technical Disclosure No. 24-11857683_0009_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857683_0009_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,683.

Summary of the Inventive Concept

This inventive concept adapts the original lyophilized phenobarbital composition for specific, high-stakes operational environments, such as emergency medical response in extreme weather conditions, disaster relief, high-security areas, and high-altitude settings.

Background and Problem Solved

The original patent provides a lyophilized pharmaceutical composition of hydrolytically unstable pharmaceutical compounds, such as phenobarbital or salts thereof, with an ethanol content in the range from about 5000 ppm to about 70000 ppm. However, this composition may not be suitable for use in extreme or high-stakes environments, where the reliability and stability of the composition are paramount. The present inventive concept addresses this limitation by adapting the original composition for these niche environments.

Detailed Description of the Inventive Concept

The inventive concept comprises a lyophilized pharmaceutical composition of phenobarbital or salts thereof, having an ethanol content in the range from about 12000 ppm to about 50000 ppm, specifically designed for use in emergency medical response in extreme weather conditions, disaster relief, high-security areas, and high-altitude settings. The composition is formulated to maintain its stability and efficacy in these environments. In one embodiment, the composition is used in a system for emergency medical response in extreme weather conditions, comprising a portable reconstitution device for administering the composition to patients in need thereof. In another embodiment, the composition is used in a high-security storage container, comprising a tamper-evident seal and a temperature control system for maintaining a storage temperature between 20-25°C.

Novelty and Inventive Step

The inventive concept's novelty lies in its adaptation of the original composition for specific, high-stakes operational environments, which requires a unique combination of formulation, packaging, and delivery systems. The inventive step lies in the recognition of the need for a specialized composition that can maintain its stability and efficacy in these environments, and the development of a solution that meets this need.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include variations in the ethanol content, the use of different solvents or excipients, or the incorporation of additional components to enhance stability or efficacy. Other variations may include different packaging and delivery systems, such as single-dose vials or prefilled syringes, to accommodate the specific needs of different operational environments.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the pharmaceutical and medical device industries, particularly in the areas of emergency medical response, disaster relief, and high-security healthcare. The target market includes government agencies, non-governmental organizations, and private companies involved in emergency medical response and disaster relief, as well as high-security facilities and medical institutions operating in high-altitude environments.

CPC Classifications

SectionClassGroup
A A61 A61K9/19
A A61 A61K9/08
A A61 A61K31/515
A A61 A61K47/10
A A61 A61P25/08

Field of Art

Pharmaceutical formulation and drug delivery, specifically focusing on lyophilized injectable compositions for neurological treatments, with expertise in pharmaceutical chemistry, stability analysis, and specialized medical delivery systems

Person of Ordinary Skill (PHOSITA) Profile

A pharmaceutical scientist with advanced degree in chemistry or pharmaceutical sciences, experienced in formulation development, stability testing, and medical device design, familiar with injectable drug preparation techniques and regulatory requirements for pharmaceutical compositions

Obviousness Rationale

A person having ordinary skill would recognize that the source patent's lyophilized phenobarbital composition provides a foundational framework that can be readily adapted to specialized medical response environments. The PTD's variations represent predictable extensions of the original composition, applying known pharmaceutical engineering principles to create context-specific delivery solutions. The core chemical composition remains substantially unchanged, with modifications focusing on packaging, delivery systems, and operational context.

Obvious Combinations & Variations

Source Patent Element
Lyophilized phenobarbital sodium composition with controlled ethanol content (12000-50000 ppm)
PTD Variation
Adaptation of composition for emergency medical response and extreme environment deployment
Obviousness Reasoning
Predictable application of existing pharmaceutical formulation to specialized medical contexts, utilizing known stability parameters and delivery techniques
Source Patent Element
Specific impurity control mechanisms in lyophilized composition
PTD Variation
Integration of tamper-evident seals and temperature control systems for storage
Obviousness Reasoning
Known pharmaceutical packaging techniques applied to maintain compositional integrity, representing a standard design choice for sensitive medical preparations
Source Patent Element
Method of treating neonatal seizures using lyophilized phenobarbital
PTD Variation
Expanded delivery contexts including disaster relief, high-altitude, and high-security environments
Obviousness Reasoning
Logical extension of existing medical treatment method to diverse operational scenarios, representing a routine optimization of pharmaceutical delivery
Source Patent Element
Controlled ethanol content range in pharmaceutical composition
PTD Variation
Specific ethanol content optimization for extreme environmental conditions
Obviousness Reasoning
Routine experimentation in pharmaceutical formulation to maintain stability across varied environmental conditions
Source Patent Element
Lyophilized injectable pharmaceutical composition
PTD Variation
Integration with portable reconstitution and remote consultation technologies
Obviousness Reasoning
Predictable technological convergence combining known pharmaceutical formulation with emerging medical delivery technologies
35 U.S.C. § 103 Summary: Based on US Patent 11857683, the present publication demonstrates that the claimed variations in lyophilized phenobarbital composition and delivery systems would have been obvious to a person having ordinary skill in pharmaceutical formulation at the time of invention, as the modifications represent predictable extensions of existing pharmaceutical engineering principles applied to specialized medical response contexts.

Original Patent Information

Patent NumberUS 11,857,683
TitleStabilization of phenobarbital sodium for injection
Assignee(s)SUN PHARMA ADVANCED RESEARCH COMPANY LIMITED