There is no direct information regarding the history of shellfish allergy before taking Vascepa in the provided sources. The sources mainly focus on the drug's patent information, FDA label, and general information about Vascepa.

To determine if there is a potential risk of shellfish allergy with Vascepa, it is recommended to consult with a healthcare professional or refer to the drug's prescribing information, which can be found in the FDA label [2]. The prescribing information may contain information about potential allergic reactions or contraindications related to shellfish allergies.

It is important to note that Vascepa is a prescription medication used to treat certain types of high cholesterol and triglyceride levels. It contains the active ingredient icosapent ethyl, which is a form of omega-3 fatty acid [2]. While the sources do not specifically mention shellfish as an ingredient in Vascepa, it is always crucial to inform your healthcare provider about any known allergies or sensitivities before starting any new medication.

In conclusion, the provided sources do not directly mention the history of shellfish allergy before taking Vascepa. It is advisable to consult with a healthcare professional or refer to the drug's prescribing information for more specific information regarding potential allergic reactions or contraindications related to shellfish allergies.

Sources:
[1] DrugPatentWatch. Vascepa - Tradename Details. Retrieved from https://www.drugpatentwatch.com/p/tradename/VASCEPA
[2] U.S. Food and Drug Administration. Vascepa (icosapent ethyl) Capsules, for Oral Use. Full Prescribing Information. Retrieved from https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/202057s035lbl.pdf
[3] Vascepa Official Website. Retrieved from https://www.vascepa.com/