Dr. Cull: Drug dependency is a state of periodic or chronic intoxication, detrimental to the individual and society, produced by the repeated consumption of a drug (natural or synthetic). Its characteristics include:

1. An overpowering desire or need (compulsion) to continue taking the drug and to obtain it by any means;
2. A tendency to increase the dose;
3. A psychological and sometimes a physical dependence on the effects of the drug.

Laura Lagge: It usually looks like a split personality. Normal values and beliefs tend to go to the wayside and it seems that your loved one has been snatched away. Physical appearances can change also – sometimes subtly and sometimes dramatically. This can depend completely on the type of drug used and a person’s overall general health, but change does take place.   [less]