Question

Drug-related deaths among celebrities __________. can give you a fairly accurate idea about the relative toxicities of psychoactive drugs may not represent the drugs most frequently encountered by the rest of society involve drugs that are relatively inexpensive involve information that is largely unreported

Answer 1

I believe the answer is can be misleading with respect to the relative toxicity levels
Since celebrity often invited to after party, it is reasonable to assume that they consume many different types of drinks along with the drugs.
Because of this, it's hard to know if the deaths are actually caused by the Drugs alone or complication with other substance.

Answer 2

Drug-related deaths among celebrities may not represent the drugs most frequently encountered by the rest of society. It does not have anything to do with how cheap the drugs are. There are networks that help control the abuse of drugs called as DAWN which is Drug Abuse Warning Network which was set up by major metropolitan hospitals.