I think what the faculty means is that out of your transcript, the class that they look for more than others is perhaps Ochem. Although Ochem might not be the indicator for pharmacy succuess, that's probably what they want to see u do good in, instead of, non-related courses. However, getting a bad grade in Ochem certainly don't mean u're hopeless. If u're good with other courses in biology and physiology, those would definitely help. But i would think getting all As in history / social sicences and all bad grades in sciences would be very bad.