Can Cannabis Be Addictive?

Cannabis, also known as marijuana, is one of the most widely used psychoactive substances in the world. Whether it can be addictive has been the subject of ongoing scientific research and public debate. Current evidence suggests that cannabis can lead to dependence in some individuals, and some people may experience withdrawal symptoms when they stop using it.

Cannabis and Dependence

The addictive potential of cannabis is often compared with that of substances such as alcohol, nicotine and opioids.

Research suggests that approximately 9% of people who use cannabis may develop cannabis dependence. This figure increases to around 17% among those who begin using cannabis during adolescence.

How Does Cannabis Dependence Develop?

Cannabis dependence is primarily linked to THC (tetrahydrocannabinol), the main psychoactive compound found in cannabis.

THC interacts with the body's endocannabinoid system by binding to cannabinoid receptors in the brain. This affects neurotransmitter activity and can produce the psychoactive effects commonly associated with cannabis.

With frequent or long-term use, the brain may adapt to the presence of THC. As a result, some individuals may require larger amounts to achieve the same effects—a process known as tolerance.

Cannabis Withdrawal Symptoms

When regular cannabis use is stopped, some people may experience withdrawal symptoms. These can be both physical and psychological.

Common symptoms include:

• anxiety

• low mood or depression

• difficulty sleeping or insomnia

• irritability

• reduced appetite

• increased sweating, including night sweats

• tremors or physical discomfort

The severity and duration of withdrawal symptoms vary from person to person.

What Does the Research Say?

Studies indicate that cannabis can lead to both psychological and physical dependence.

One study found that approximately 42.4% of daily cannabis users experienced withdrawal symptoms when attempting to stop using cannabis.

Research also shows that, while cannabis has a lower risk of dependence than some other substances, it can still become problematic for certain individuals.

The American Psychiatric Association (APA) recognises Cannabis Use Disorder (CUD) as a diagnosable condition. It is characterised by factors such as:

• difficulty controlling cannabis use

• continued use despite negative consequences

• the development of tolerance

• withdrawal symptoms when use is reduced or stopped

Conclusion

Although cannabis is generally considered to have a lower risk of dependence than substances such as nicotine, alcohol or opioids, it is not entirely risk-free.

Some people may develop dependence and experience withdrawal symptoms when they stop using cannabis.

Understanding these potential risks can help individuals make informed decisions. Anyone experiencing difficulties related to cannabis use should seek advice from a qualified healthcare professional.

Sources

• National Institute on Drug Abuse (NIDA)

• American Psychiatric Association (APA)

• Centers for Disease Control and Prevention (CDC)