extended period of time

pharmacotherapy (use of pharmaceuticals to treat disease)

drug

medical treatment / cure

to treat (medically) / to cure

needed, necessary

need, necessity

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend