Like lionheart said, it does not seem practical to do a residency PLUS fellowship. That could potentially take three years considering most fellowships last 2 years (there are many 1-year fellowships too). However, if industry is truly your passion, then spending 2-3 years after graduation would be worth landing a career that could potentially make you happy for life. I actually met a couple fellowship candidates who were completing their PGY1 residencies, so it does happen.
You already have some DI and med safety experience, so you could definitely search for and apply to positions related to those fields. Medical information and pharmacovigilance are typically entry-level positions and it sounds like you'd have a shot at going directly into these roles. However, I feel like you would need to complete a fellowship in order to jump into functions like HEOR, commercial, clinical research, reg affairs, etc.
I believe that the principles of drug information are incredibly valuable whether you practice in a clinical setting or work in industry. I learned so much during my drug info rotation and even enjoyed writing monographs! There is no "right" path to industry and I wish you the best!