Hello Narik,
When you say GSK, I assume you mean GlaxoSmithKline, working in a lab etc? Whilst that is fairly relevant, what selectors are looking for nowadays is some experience of working with people in a patient setting such as a care home. This would obviously give you 'hands-on' experience of working with people who have health issues. I'm not a medic myself though, so confirm this with a University etc. first before applying for work experience.
Good luck!