10 Most Addictive Drugs In the World

No. 9 Benzodiazepines

Dependence Rating: 1.89

Benzodiazepines are all around. Popular names such as Xanax, Valium or Klonopin are anti-anxiety prescription drugs which increase the brain’s GABA system, which lowers anxiety levels and reduces the excitability of neurons in the brain. Yet, as the body starts adapting to the effects of these drugs, it builds up tolerance, producing the need to increase the drug dose. People do not feel the need to quit them, and their withdrawal has to be done carefully, as it can cause high levels of anxiety and panic attacks.