You might want to ask a pharmacist about this, I am not aware of any interaction like this that cannot be remedied by changing the supplementation time. Examine is also great at picking out the research.
I remember to take my fish oil more regularly when I'm taking a prescribed medicine. At one point I switched brands, but also hadn't been taking it regularly.
I started a new prescription and had stomach discomfort. I attributed it to the new med. So I stopped taking the new med, and it got better--- but that also meant I wasn't taking the fish oil regularly.
Eventually I got regular about taking the fish oil again without the prescription med and went ... wait! I'm having that symptom that prescription made gave me!
Correlation is not causation!