psychotropic
adjective /ˌsaɪkəˈtrəʊpɪk/
  /ˌsaɪkəˈtrəʊpɪk/
[usually before noun] (medical)- relating to drugs or substances that affect a person’s mental state
- psychotropic medication/drugs
 
Oxford Collocations DictionaryPsychotropic is used with these nouns:- drug
 - substance