How to change careers from a pharmacists to anesthesiologist?

Well, you're either a) getting a Pharmacy degree or b) graduated with one.



So if you don't have the degree yet, finish it (with awesome marks, hopefully.) Make sure that you have the medical school prerequisites for the country you're applying in.



If you do have the degree, then buy a copy of your transcript from your University and find out what classes you might need before you apply to medical school.



If you have them all, then you can apply. The organization you apply to differs from country to country.



After you graduate from medical school (hopefully with awesome marks again) then you can apply to an Anesthesiologist residency (which is like an apprenticeship) and get trained in the field.