Vascepa is a prescription medication used to treat high levels of triglycerides in the blood. According to the sources provided [1][2][3], there are several medications that should be avoided or used with caution when taking Vascepa.

Firstly, it is important to inform your doctor about all the medications you are taking, including over-the-counter drugs, vitamins, and supplements. Certain medications can interact with Vascepa, increasing the risk of side effects or reducing the effectiveness of the medication.

One medication that should be avoided when taking Vascepa is Lovaza (omega-3-acid ethyl esters). Both Vascepa and Lovaza contain omega-3 fatty acids, and taking them together can increase the risk of bleeding [1].

Other medications that may interact with Vascepa include blood thinners such as warfarin, aspirin, and clopidogrel, as well as nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen and naproxen. These medications can also increase the risk of bleeding when taken with Vascepa [2][3].

In addition, it is important to avoid alcohol while taking Vascepa, as it can increase the risk of bleeding and liver damage [2].

It is important to follow your doctor's instructions carefully when taking Vascepa and to inform them of any medications you are taking. If you experience any side effects while taking Vascepa, such as bleeding or liver problems, you should contact your doctor immediately.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/VASCEPA
[2] https://www.webmd.com/drugs/2/drug-162888/vascepa-oral/details
[3] https://www.everydayhealth.com/drugs/vascepa