[tyho]

Opioids and Benzos need to be much more carefully prescribed. They are addictive and expensive and people build a tolerance to them. Once you have are addicted and have a tolerance the logical decision to make is somethimes to start snorting heroin as it is much cheaper. I hear a lot of people starting on prescribed opioids then moving to heroin because it is more affordable.

That being said, these classes of drugs are not the ones being discussed in the article.