Benzodiazepines are a class of prescription sedative medications widely used across Canada to manage anxiety, insomnia, seizure disorders, and alcohol withdrawal. Familiar names such as lorazepam (Ativan), diazepam (Valium), clonazepam (Rivotril), and alprazolam (Xanax) are prescribed across the country each year. According to the Centre for Addiction and Mental Health (CAMH), benzodiazepines are the most widely prescribed psychoactive drugs in the world, and while they are safe and effective when used appropriately, they carry meaningful potential for addiction.
The way benzodiazepines work is straightforward: they increase the activity of GABA, a naturally occurring inhibitory neurotransmitter in the brain. That boost produces calm, drowsiness, and muscle relaxation. These are properties that make the drugs genuinely useful, but the same neurochemical mechanism also means the brain can adapt to their presence over time, creating tolerance and physical dependence that can develop even in people who take them exactly as directed. CAMH notes that the risk of addiction rises when benzodiazepines are taken regularly for more than a few weeks, particularly at higher-than-normal doses.
Understanding benzodiazepine addiction matters because it looks different from many other forms of problematic substance use. Many people who develop a problematic pattern of benzodiazepine use began with a legitimate prescription and crossed into dependence gradually, often without realizing it. Recognizing how addiction develops, and what recovery looks like in a Canadian context, can help a person decide to seek support.
How Benzodiazepine Addiction Develops
The Difference Between Physical Dependence and Addiction
Physical dependence and addiction are related but not identical. Physical dependence means the body has adapted to the regular presence of benzodiazepines and will produce withdrawal symptoms if the drug is reduced or stopped abruptly, and this can happen in patients who have never misused their medication at all. Addiction, as described by CAMH, involves a compulsive pattern of use marked by strong cravings, taking more of the drug than intended, and continuing to use it despite the problems it may cause. Addiction may develop alongside physical dependence, or it may not, and both deserve clinical attention and compassionate care.
Tolerance: When the Same Dose Does Less
Tolerance develops when a given dose no longer produces the original effect, prompting some people to increase their intake to recapture that relief. CAMH explains that tolerance to the sleep-promoting effects of benzodiazepines can develop within a few weeks of regular use, and that tolerance to one type of benzodiazepine leads to tolerance to other benzodiazepines and to other drugs with similar effects, including alcohol. This cross-tolerance is one reason why someone who has become dependent on benzodiazepines may find their alcohol use climbing at the same time.
Prescription Origins and Gradual Escalation
A substantial proportion of benzodiazepine addiction in Canada has its roots in legitimate medical prescribing. The Canadian Guidelines on Benzodiazepine Receptor Agonist Use Disorder Among Older Adults, published in the Canadian Geriatrics Journal, cite an estimate that 9 to 10 per cent of older adults taking benzodiazepine receptor agonists, the drug family that includes benzodiazepines and related sleep medications such as zopiclone, meet criteria for substance dependency. In this age group, that use typically begins with a prescription rather than illicit acquisition. Escalation often happens quietly: a person prescribed lorazepam for situational anxiety finds they need it to sleep, the prescription is renewed, and over months or years stopping feels impossible without severe discomfort.
Recognizing the Signs of Problematic Benzodiazepine Use
Behavioural and Psychological Signs
Because benzodiazepine addiction often has a prescription origin, behavioural signs can be subtle. Common indicators include:
- Using higher doses than prescribed, or obtaining prescriptions from more than one provider
- Strong preoccupation or anxiety about having an adequate supply
- Continuing use despite negative effects on memory, coordination, mood, or relationships
- Unsuccessful attempts to reduce or stop use
- Using benzodiazepines to manage emotional distress beyond the original reason for the prescription
Physical Signs
Physical signs of problematic benzodiazepine use include chronic drowsiness, impaired coordination, slurred speech, and memory difficulties. In higher doses, or when combined with other central nervous system depressants such as alcohol and opioids, benzodiazepines can cause confusion, breathing difficulties, and overdose. CAMH notes that combining benzodiazepines with alcohol or with opioids can result in overdose and death.
A Unique Risk in the Unregulated Drug Supply
Canada has seen a significant and dangerous trend: the emergence of non-medical benzodiazepines in the illegal drug supply. A 2023 article in the International Journal on Drug Policy describes how these adulterants, synthetic benzodiazepines mixed into the opioid supply in a combination sometimes called “benzodope,” have amplified the risks for people who use drugs, including fatal and non-fatal overdoses and increased dependence and withdrawal. Because benzodiazepines are often mixed into other drugs without the user’s knowledge, people who use street drugs may not know they are consuming them at all.
Who Is at Higher Risk in Canada
Older Adults
Canadian clinical guidelines note that the prescription rate in Canada for these medications is highest among older adults, with about one in six older adults consuming a sedative. Older adults are more sensitive to the effects of benzodiazepines because of age-related changes in how the body processes them, which raises the risk of cognitive impairment, falls, fractures, and motor vehicle crashes. The guidelines recommend that long-term use, beyond four weeks, be avoided whenever possible in this population.
Women
The same Canadian clinical guidelines also note that benzodiazepines are prescribed more frequently to women, and that this pattern may reflect an implicit bias that can lead to inappropriate use. Higher rates of prescribing can translate into higher rates of long-term use and dependence, along with the added challenge of tapering while still managing the anxiety or insomnia that prompted the original prescription.
People with Substance Use or Co-occurring Conditions
People with a personal history of substance use problems are at elevated risk of developing addiction to benzodiazepines, and CAMH recommends that those with such a history avoid or minimize benzodiazepine use wherever possible. Co-occurring mental health conditions, chronic pain, and trauma histories are also associated with higher rates of benzodiazepine use and greater difficulty stopping.
The Canadian Context: Prescribing Trends and the Overdose Crisis
A narrative review of benzodiazepine use, misuse, and harm published in Clinical Drug Investigation reports that benzodiazepine use in Canada is high by international standards, and that while general-population use has been relatively stable, inappropriate prescribing remains common, particularly among older adults, and national prescribing guidelines have historically been lacking. Benzodiazepine dependence has also collided with Canada’s opioid overdose crisis. A 2023 analysis in the International Journal on Drug Policy describes how benzodiazepines mixed into the opioid supply raise the risk of both fatal and non-fatal overdose for people who use these drugs.
A population-based Ontario study in the Canadian Journal of Public Health documented over 32,000 benzodiazepine-related toxicity encounters in Ontario between 2013 and 2020. The share of those encounters that also involved opioids, alcohol, or stimulants climbed to nearly 30 per cent by 2020, a reflection of the increasingly toxic unregulated drug supply and the growing overlap of benzodiazepine use with other substances.
Steps Toward Safer Recovery
Talk to a physician or addiction medicine specialist
Before making any changes, speak with a provider, because stopping benzodiazepines abruptly can be medically dangerous.
Work with your care team on a gradual tapering plan
tailored to your specific benzodiazepine, your dose, and how long you have been taking it.
Ask about therapy and other non-drug support
Cognitive behavioural therapy and counselling can help support a taper.
Connect with community addiction services
available across Canada for peer support and ongoing care.
Moving Forward
Benzodiazepine dependence rarely announces itself. For many people it grows quietly out of a prescription that once made sense, which is part of what makes it so easy to overlook and so worth taking seriously. Noticing that pattern early, whether in yourself or someone you care about, opens the door to change before dependence deepens.
Recovery is possible, and it does not have to be faced alone. Because benzodiazepine withdrawal can be medically serious, the safest path forward starts with a conversation: a physician, an addiction medicine specialist, or a counsellor can help build a gradual, individualized plan, and community addiction programs across Canada offer ongoing support along the way. Reaching out is a practical way to get started.