Vascepa (icosapent ethyl) is a prescription medication used to treat high triglyceride levels in adults. According to the sources provided, there are several common side effects associated with Vascepa.

One of the most common side effects of Vascepa is joint pain. This side effect was reported in clinical trials and affects approximately 2.3% of patients taking the medication [2]. Other common side effects of Vascepa include muscle pain, back pain, and constipation [1][3].

In rare cases, Vascepa can cause serious side effects such as an allergic reaction, pancreatitis, and liver problems [3]. Patients should seek medical attention immediately if they experience symptoms such as difficulty breathing, swelling of the face or throat, severe abdominal pain, or yellowing of the skin or eyes.

It is important to note that not all patients will experience side effects while taking Vascepa. Patients should speak with their healthcare provider about any concerns they have regarding side effects or the safety of the medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/VASCEPA
[2] https://www.everydayhealth.com/drugs/vascepa
[3] https://www.rxlist.com/vascepa-drug.htm