There is no easy answer to this. If and how quickly you might become addicted to a drug depends on many factors including the biology of your body. All drugs are potentially harmful and may have life-threatening consequences associated with their abuse. There are also vast differences among individuals in sensitivity to various drugs. While one person may use a drug one or many times and suffer no ill effects, another person may be particularly vulnerable and overdose with first use. There is no way of knowing in advance how someone may react.