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Benzodiazepines: A Double-Edged Sword

Benzodiazepines can help but may increase risks of substance use problems.

Xinchen Wang, Zheng Chang, Yasmina Molero, Kayoko Isomura, Lorena Fernández de la Cruz, Paul Lichtenstein, Ralf Kuja-Halkola, Brian M D’Onofrio, Patrick D Quinn, Henrik Larsson, Isabell Brikell, Clara Hellner, Jan Hasselström, Nitya Jayaram-Lindström, David Mataix-Cols, Anna Sidorchuk

― 5 min read


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Table of Contents

Benzodiazepines, often referred to as "benzos," are medications used to treat anxiety, insomnia, and withdrawal symptoms from alcohol. They are popular for their relaxing effects and can be quite helpful for people who struggle with these issues. There are also related drugs known as Z-drugs, which are specifically designed to help with sleep. While these medications can be effective in the short term, using them for a long time can lead to problems.

The Good, the Bad, and the Overdone

When prescribed for a limited time, benzodiazepines and Z-drugs can be safe and effective. However, if someone uses them for an extended period, they might develop a tolerance. This means that over time, the same dose isn't as effective, and the person may need to take more. Unfortunately, this can also lead to Dependency, where the person feels they need the drug to function normally.

Now, it's not common for people to misuse these drugs as their primary choice of substance, but when they are combined with other substances, especially opioids or alcohol, it can lead to serious issues, including overdose deaths. This is a concerning reality, considering that many studies focus on people who already have Substance Use problems.

New Users, New Risks

One of the big questions in the medical community is how starting these medications might influence future substance use. Understanding whether new users of these drugs are more likely to develop other substance use disorders is important. Some research suggests that using benzodiazepines during opioid treatment could lead to higher risks of relying on opioids over time. Yet, there are still many unanswered questions about benzodiazepines and their link to other substance issues in those who use them for the first time.

The Study: What Was Done?

To tackle these questions, a study was conducted in Sweden looking at a massive number of individuals who were prescribed benzodiazepines or Z-drugs. The researchers wanted to see if there was a relationship between starting these medications and later developing problems related to alcohol or drugs. They used nationwide records, so they had a great pool of data to pull from, including everything from medical history to societal factors.

Overall, they observed over 6 million individuals, ensuring that they were looking at people who had no previous prescriptions for these medications or records of substance use before they started. This made the group more reliable for studying the effects of starting these medications.

How Did They Measure the Effects?

The researchers gathered information on various substance-related issues, including alcohol use disorders, drug use disorders, poisoning from these substances, and deaths linked to them. They also looked at suspected criminal activities related to substance use.

To make sure their findings were accurate and not skewed by other factors, they controlled for numerous variables, such as family history of substance issues and other medical conditions. The idea was to get a clear picture of whether starting benzodiazepines or Z-drugs had an impact, without interference from other potential influences.

The Results: What Did They Find?

Across the board, the results indicated that people who started on benzodiazepines had higher rates of alcohol and drug-related problems compared to those who did not. Specifically, individuals who began taking these medications were nearly twice as likely to experience issues related to alcohol or drugs.

For instance, in the population studied, around 40,475 people who started on benzodiazepines later developed alcohol-related problems. In comparison, only 18,581 of those who didn't take benzodiazepines had similar issues. This suggests that there’s a noteworthy risk factor involved in starting benzodiazepines.

Patterns Over Time

Interestingly, the risks didn’t just appear right away; they persisted over time. Even years after starting the medications, those who began using them still showed higher risks of developing problems. At the ten-year mark, the risk differences were significant, showing that the earlier decision of whether to use these medications had lasting effects.

The Co-Twin Control Method

To strengthen their findings, researchers also looked at families with twins. By comparing one twin who used the medications with the other who did not, they could minimize the impact of genetic and environmental factors that could skew the results. This added layer of analysis provided even more support for the idea that starting benzodiazepines leads to a higher risk of alcohol and drug-related issues.

User Characteristics Matter

When diving deeper, the researchers found that certain characteristics influenced the risks associated with benzodiazepine use. For example, younger individuals or those without a history of mental health issues showed even higher risks of developing problems after starting the medications. The amount of medication taken also played a role; greater use in the first year correlated with a higher likelihood of future issues.

The Importance of Monitoring

The findings from this study send a clear message to healthcare providers. If someone is prescribed benzodiazepines or Z-drugs, it’s essential to monitor their substance use closely. Even if these medications are beneficial at first, there's a risk of developing more significant problems over time, especially if not monitored properly.

So, What’s the Bottom Line?

In conclusion, while benzodiazepines and Z-drugs can be effective tools for treating anxiety and sleep issues, they come with risks that shouldn’t be ignored, especially for new users. People who start these medications could find themselves at a greater risk of facing alcohol or drug-related problems in the future. This highlights the need for careful prescription practices and ongoing monitoring of patients’ substance use behaviors.

In Summary: Keep an Eye Out!

If you or someone you know is prescribed benzodiazepines or Z-drugs, it's crucial to keep an open line of communication with healthcare providers. Discuss any concerns or changing behaviors, and be proactive in managing your health. Remember, it's all about balance—sometimes, it's best to avoid a little “pill party” that could lead to much bigger issues down the road!

Original Source

Title: Incident benzodiazepine and Z-drug use and subsequent risk of alcohol- and drug-related problems: a nationwide matched cohort study with co-twin comparison

Abstract: BackgroundDespite considerable interest in the consequences of benzodiazepine and benzodiazepine-related Z-drug (BZDR) use, little is known about whether and how initiation of BZDR treatment contributes to the development of alcohol- and drug-related problems. AimTo examine the association of incident BZDR dispensing with subsequent development of broadly defined alcohol- and drug-related problems. MethodsThis nationwide register-based study included demographically matched and co-twin control cohorts. Among all Swedish residents aged [≥]10 years and BZDR-naive by 2007, 960,430 BZDR-recipients with incident dispensation in 2007-2019 and without any recorded pre-existing substance-related conditions were identified and matched (1:1) to nonrecipients from the general population. Twin BZDR-recipients (n=12,048) were linked to 12,579 unexposed co-twins. Outcomes included alcohol and drug use disorders, poisoning, deaths, and related suspected criminal offences. Flexible parametric survival models estimated outcome risks across up to 14 years of follow-up. ResultsIn the demographically matched cohort (60% women, median age at BZDR initiation 51 years), incidence rates in BZDR-recipients and nonrecipients (per 1000 person-years) were 5.60 vs 2.79 for alcohol-related and 4.15 vs 1.23 for drug-related problems, respectively. In fully-adjusted models, relative risks were increased for alcohol- and drug-related problems (adjusted hazard ratio [95% confidence interval]: 1.56 [1.53-1.59] and 2.11 [2.05-2.17], respectively). The risks persisted within the co-twin comparison, different follow-ups, and all additional and sensitivity analyses. ConclusionsBZDR initiation was associated with a small but robust increase in absolute and relative risks of developing alcohol- and drug-related problems. The findings contribute to evidence base for making decisions on BZDR treatment initiation.

Authors: Xinchen Wang, Zheng Chang, Yasmina Molero, Kayoko Isomura, Lorena Fernández de la Cruz, Paul Lichtenstein, Ralf Kuja-Halkola, Brian M D’Onofrio, Patrick D Quinn, Henrik Larsson, Isabell Brikell, Clara Hellner, Jan Hasselström, Nitya Jayaram-Lindström, David Mataix-Cols, Anna Sidorchuk

Last Update: 2024-11-30 00:00:00

Language: English

Source URL: https://www.medrxiv.org/content/10.1101/2024.11.27.24318091

Source PDF: https://www.medrxiv.org/content/10.1101/2024.11.27.24318091.full.pdf

Licence: https://creativecommons.org/licenses/by-nc/4.0/

Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.

Thank you to medrxiv for use of its open access interoperability.

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