I suspect that the question was not referring to drugs such as aspirin but referring to recreational drugs. read more
The advantages of drugs are there positive effects. e.g. Aspirin can reduce inflammation, ease a headache, reduce the risk of a heart attack. The disadvantage are there negative effects, in aspirins case it causes stomach irritation and bleeding, Depending on the situation what is an advantage to some is a disadvantage to others. read more
Only advantage of drug abuse is the release of feel good chemicals, Other than that almost all drugs have nasty side effects and awful withdrawal effects. Most drugs can cause cancer like any Tobacco Products. read more