I didn't do any research but I volunteered at a pharmacy. To be honest, I just really didn't like working in a lab. I think you can justify yourself. If anything, if they doubt your abilities during an interview, you can always say that although you have no research experience, you have done enough lab work to think critically (most undergrad majors require you to do lab work anyways). Then give examples of this. I had to work on enzymes and metabolism in biochem lab, so that would definitely pertain to pharmacy.