Depends on the drug. It also depends on the individual. If you are more specific, I could provide you with a better answer.
The addictive substance
The most addictive drugs are inhaled drugs such as tobacco (nicotine) and crack cocaine, as well as injected drugs such as heroin. Powerful stimulants, such as methamphetamine, are also highly addictive.
cocaine, crack, heroin ,ecstasy, alcohol. There are others, but these are def. at the top for addictive drugs
Codeine is the classic structural formula for all addictive drugs.
boner
Depends on the person taking them.
Addictive drugs
All drugs are ; heroins the worst though!
Vicodin is a drug of the opiate class, one of the most addictive groups of drugs.
Yes, as are all drugs.
alot
no..