Kyūjitai form of 薬学 (“pharmacy, pharmacology (science)”)

academic major

specialize in, major in

Kyūjitai form of 薬理学 (pharmacology)

(chiefly women's speech) first person singular pronoun: I, me

Kyūjitai form of 薬: a medicine, a drug.

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness

(formal) first-person singular pronoun: I, me

personal, private / secret