Drugs that have an effect on the mind, or that alter the state of mind.
Drugs that cause mood change.
Any drug which affects psychic function, behavior or experience. These include, but are not limited to, those which produce drug dependence.
A drug that affects psychic function, behavior, or experience. Many drugs can be classed as intentionally psychotropic, but many other drugs also occasionally may produce undesired psychotropic side effects.
Substances that influence the mind, encompassing hallucinogenic, sedative, sleeping, tranquillizer, and antipsychotic medications.