Are there any chances that a mechanical engineer become a pharmacist?
definitely different fields. If you have the resources, do a double major. This may add a year or two to your college stay. You may reduce that if you take some summer courses. The purpose of the double major will be to really determine which area you have a real affinity for. You may find that you engineering ability really helped you in the pharmacy side. On the other hand, you find you excel at the pharmacy classes and are marginal in the mechanical engineering courses. Your best bet is to talk to people in field. This will give you great feed back. Engineering may give more money, but the long term prospects of pharmacists may be better because society is getting older, and more new drugs are coming out. Cheers and good luck!