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A Procedure to Study the Effect of Prolonged Food Restriction on Heroin Seeking in Abstinent Rats
Published on: November 11, 2013
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A method of diamorphine (heroin) administration for harm reduction
Oisín N Kavanagh1,2, Tatiane C Machado3,4
1School of Pharmacy, Newcastle University, Newcastle upon Tyne, UK. Oisin.Kavanagh@newcastle.ac.uk.
Harm Reduction Journal
|March 30, 2023
Summary
Harm reduction strategies for injecting drugs can be improved. This study analyzes risks associated with heroin preparation, proposing a safer method to prevent vein damage and precipitation.
Area of Science:
- Pharmacology
- Public Health
- Chemistry
Background:
- Societal shifts have led to harm reduction strategies for intravenous drug use.
- Diamorphine (heroin) free base has poor water solubility, requiring chemical modification for administration.
- Current harm reduction kits provide acids (citric, ascorbic) to increase heroin solubility, but imprecise measurement poses risks.
Purpose of the Study:
- To analyze the risk of venous damage from low pH solutions during heroin preparation.
- To evaluate the risk of heroin supersaturation and precipitation within the vein.
- To propose a modified administration method for safer intravenous drug use.
Main Methods:
- Utilized Henderson-Hasselbalch models to analyze solution pH in relation to blood buffer capacity.
- Modeled the risk of venous damage due to acidic solutions.
- Investigated the potential for heroin supersaturation and precipitation.
Main Results:
- Imprecise acid measurement in heroin preparation can lead to dangerously low pH, risking venous damage.
- Low pH solutions can cause repeated injury, potentially leading to injection site loss.
- Heroin supersaturation and precipitation within the vein present a significant risk of further harm.
Conclusions:
- Current harm reduction advice for heroin preparation is inadequate and carries risks.
- A modified administration method is proposed to enhance safety and reduce harm.
- Improved harm reduction strategies are crucial for intravenous drug users.
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