13. Semantic Motifs Potential Interaction Trimeprazine Chlorpromazine Histamine H1 Receptor drug (2) drug (1) target binds to similar to similar to binds to
Viagra – was pulmonary arterial hypertension – now erectile dysfunction Zyban – was antidepressant – now smoking cessation aid Thallidomide – was anti-emetic – now used for treating cancers & leprosy