Vascepa is a prescription drug that contains the active ingredient icosapent ethyl, which is used to lower high levels of triglycerides in the blood. According to Drugs.com [2], Vascepa can start to work within a few weeks, but it may take up to 12 weeks to see the full benefits of the medication. Healthline [3] also confirms that Vascepa can start to work within a few weeks, but it may take up to 12 weeks to see significant results. The website also states that Vascepa may continue to provide benefits for up to 24 weeks.

However, it is important to note that the time it takes to see results with Vascepa can vary depending on individual factors such as the severity of the condition being treated, the patient's overall health, and how well they adhere to the prescribed dosage and treatment plan.

Drug Patent Watch [1] provides information on the patent status of Vascepa, but does not provide information on the time it takes to see results with the medication.

In conclusion, Vascepa can start to work within a few weeks, but it may take up to 12 weeks to see the full benefits of the medication. However, the time it takes to see results can vary depending on individual factors. It is important to follow the prescribed dosage and treatment plan and consult with a healthcare provider if any concerns arise.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/VASCEPA
[2] https://www.drugs.com/medical-answers/long-vascepa-work-3553333/
[3] https://www.healthline.com/health/drugs/vascepa