Based on the provided sources, there is no specific mention of negative interactions between Vascepa and fish oil. However, it is important to note that Vascepa is a prescription medication containing the active ingredient icosapent ethyl, which is a type of omega-3 fatty acid derived from fish oil.

Vascepa is primarily used to reduce high levels of triglycerides in adults with severe hypertriglyceridemia [1]. It is known to work by decreasing the production of triglycerides in the liver and increasing their clearance from the blood [2].

Fish oil, on the other hand, is a dietary supplement that contains omega-3 fatty acids, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These omega-3 fatty acids are also found in high concentrations in Vascepa [3].

While the sources do not specifically mention any negative interactions between Vascepa and fish oil, it is always advisable to consult with a healthcare professional or pharmacist before combining medications or supplements. They can provide personalized advice based on your specific medical history and current medications.

It is worth noting that fish oil supplements, including Vascepa, may have potential side effects, such as an upset stomach, diarrhea, or a fishy aftertaste [3]. Therefore, it is important to follow the recommended dosage and consult with a healthcare professional if you experience any adverse effects.

In summary, based on the provided sources, there is no specific mention of negative interactions between Vascepa and fish oil. However, it is recommended to consult with a healthcare professional or pharmacist before combining any medications or supplements to ensure safety and efficacy.

Sources:
[1] DrugPatentWatch. Vascepa. Retrieved from https://www.drugpatentwatch.com/p/tradename/VASCEPA
[2] Healthline. Vascepa: Side effects, dosage, uses, and more. Retrieved from https://www.healthline.com/health/drugs/vascepa
[3] Drugs.com. Vascepa Patient Tips. Retrieved from https://www.drugs.com/tips/vascepa-patient-tips