If there is any chance you'd want to be an accredited biomedical scientist, then biomedical science is a good option (as long as you take a course that's actually accredited), it's also useful for getting on to graduate entry medicine. Otherwise I don't think it would be worth it for you.
I did my undergraduate degree in pharmacology, then did a masters and PhD but was still in an interesting job by 25 so it didn't take 10 years. Lots of my previous graduates haven't gone on to additional study after doing a PhD and I know a lot of people who work in the drug discovery and development industry who don't have a PhD, but it's undoubtedly more difficult to get a job and to progress if you haven't done a PhD.
There are some good biotechnology masters courses that you can get onto with a degree either in pharmacology or pharmacy. Pharmacy is more chemistry heavy as I mentioned, but also has the advantage that there's a good set out career option for you to move into once you graduate. There are a number of other options for pharmacists that don't necessarily need a PhD. In terms of pharmacology (which obviously I'm going to think is a great option), if you find the development of drugs an interesting topic and would like to learn about how they work, it would definitely be something you'd enjoy.
I'd advise against taking medicine just for the sake of it. Firstly, it's hard (both the work and actually getting onto the course, and we expect students to show a long-term commitment to studying medicine way before they apply to us)! And it's 5 or 6 years depending on where you study, in which time you could have almost completed a BSc and PhD. The latter would be more useful if you want to pursue a career in research and development.