It depends on the drugs. Most illegal drugs are illegal because they're harmful in some way, but just being illegal is harm enough for them to be worth avoiding.
Drugs that are prescribed by a doctor are medical drugs.
Licit drugs are drugs that are legal.
drugs, drugs and drugs
Hard drugs
illicit drugs are control drugs while licit are drugs that are not control
Unproven drugs are drugs that are against the law.
no drugs are good drugs rule
These drugs include amphetamines, antidepressant drugs, antipsychotic drugs, caffeine , and lithium.
Drugs education is the education of teaching others about drugs.
Drugs that control vomiting are called antiemetic drugs.
Cytotoxic drugs-- Drugs that function by destroying cells.
Drugs can interact with other drugs, foods, and beverages