I would like to study Pharmacy or any Biology or Chemistry related major in just 3 - 4 years. (In US) which other majors should I check out too?

I want to know other Chemistry and Biology related majors I should put an eye on too. Iam taking PCB in High School so I wonder what else should I consider before committing on taking Pharmacy. I want to study 3 - 4 years and getting a Degree. Who knows more about studying Pharmacy? Is it that difficult? Any advice will be more than appreciated. Thanks!!
I would like to study Pharmacy or any Biology or Chemistry related major in just 3 - 4 years. (In US) which other majors should I check out too?
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