主修制药专业用英语叫做 "Pharmaceutical Science" 或 "Pharmaceutical Studies."
"Pharmaceutical" 来源于希腊语 "pharmakeus"，意思是 "药剂师"。"Science" 来源于拉丁语 "scientia"，意思是 "知识"。
例句：
"She is majoring in Pharmaceutical Science at the university." (她在大学里主修制药专业。)
"He completed his Pharmaceutical Studies program and is now working as a pharmacist." (他完成了制药专业课程，现在是一名药剂师。)