Ethyl polyenoate capsules, also known as ethyl polyenoate softgels, are taken with side effects that are mainly gastrointestinal discomforts such as bloating and diarrhea. Ethyl polyenoate soft capsule belongs to the lipid-lowering class of prescription drugs, and its main ingredients are ethyl docosahexaenoate and ethyl eicosapentaenoate. Through a large number of unsaturated bonds in its composition, to accelerate the speed of cholesterol discharge through the digestive tract, so as to play a role in reducing the effect of blood lipid concentration in the body. Usually, patients need to follow the doctor’s instructions to use ethyl polyenoate softgels in small doses, which is less likely to cause adverse reactions. However, if the product is taken in large doses, there is a risk of gastrointestinal discomfort such as bloating, diarrhea, and abdominal pain. In addition, this product should be contraindicated for bleeding disorders as well as for those who have been previously allergic to ethyl polyenoate softgel capsules. Ethyl polyenoate capsules need to be used in strict compliance with the doctor’s instructions and standardized to avoid adverse effects. Those who are unwell during the administration of Ethyl Polyenoate Soft Capsules need to consult a doctor promptly.