The Most Addictive Over the Counter Drugs

1. Asthma Inhalers

When suffering from asthma, the worry of not being able to breath is frightening. This is an addiction that has been off the radar until recently, with many teens and adults taking numerous puffs in order to get high. As one's blood pressure rises, dangerous side effects develop.

Although inhalers typically require a prescription, they are highly accessible. Within one study, it was found that some individuals would take extra puffs of their inhaler until they passed out. This was shocking to researchers, especially in terms of the self-reported rates of abuse.