theres no jobs in medical/biomedical science
edit: pharmacology is the effect drugs have on the body from a biological perspective its not the same as pharmacy.
actually, there r some job for medical science!! LOL such as pharmacologist (heard its salary is about $80,000-$95,000p.a.) also u can b teacher after qualification (takes 1 year) or work in hospital (i dunno what they really do though), but there arnt that many, so many ppl go for postgraduate for medicine, dentistry or yeah
however pharmacologist and pharmacy are totally different as pharmacologist is a job for research and making of new medicine while pharmacy sales the products.
I dont think pharmacologist can open a drug shop
P.S.- by the way, u can be a pharmacologist or other jobs from medical science after B science, but medical science is harder, so, if u r not planning to go for dentistry or medicine, just science will be better,