What is iv drug use, what drugs?

Intravenous: With drug addiction people can start using drugs iv, the reason is that they get tolerance to them so the route of use can increase the effect. The quicker a drug gets to the brain, the more reenforcing it is or addictive. Iv route is much quicker than taking it orally or snorting it. Opiates such as heroin or pain killers, methamphetime and Cocaine are common drugs that can be abused iv.

Intravenous needle: IV drug use refers to the route used to administer a drug, a syringe attached to a hollow needle that is used to pierce the skin and vein, Once the tip is in the vein the drug is pushed directly into the circulation causing a very rapid onset of effects. 1000's of medicines are given IV. On the street it's mostly heroin & other opiates, methamphetamine and cocaine. Risk is infection and overdose