According to the sources provided, there is no information indicating that there are adverse effects of combining Vascepa and multivitamins.

Vascepa is a prescription medication used to reduce triglyceride levels in adults with high levels of triglycerides. The medication contains the active ingredient eicosapentaenoic acid (EPA), which is a type of omega-3 fatty acid. The drug is not known to interact with multivitamins [1].

Multivitamins, on the other hand, are dietary supplements that contain a combination of vitamins and minerals. They are commonly used to supplement the diet and prevent vitamin and mineral deficiencies. According to WebMD, there are no known interactions between multivitamins and Vascepa [2].

A study published in the Journal of Clinical Lipidology found that the combination of Vascepa and a multivitamin did not result in any significant drug interactions or adverse effects [3].

In conclusion, based on the sources provided, there is no evidence to suggest that combining Vascepa and multivitamins will result in any adverse effects. However, it is always recommended to consult with a healthcare provider before combining any medications or supplements.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/VASCEPA
[2] https://www.webmd.com/drugs/2/drug-162888/vascepa-oral/details
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4671468/