At a dose of 400 units of Gamma E Plus per day, some may experience such serious side effects as blurred vision, diarrhea, dizziness, headache, nausea and lethargy, according to Drugs.com. Those who experience these symptoms or other serious side effects are advised to consult a doctor immediately.
Gamma E Plus contains vitamin E, a vitamin that may be deficient in patients suffering from diseases that affect the organs in the digestive system, including the liver, pancreas and intestines, as claimed by Drugs.com. Certain dietary decisions may increase a person's need to take an oral vitamin E solution, such as infants being fed formula with this vitamin deficiency and those who eat a diet that is high in polyunsaturated fatty acids. Some have claimed that taking the vitamin orally has helped certain cosmetic and health issues, but as of 2015, these claims have not been proven.
At doses of 300 units per day or higher, side effects of oral solutions of vitamin E reported to the Food and Drug Administration include emotional disturbances, hematological issues, rash, metabolic issues and issues with specific endocrine glands, says Drugs.com. People with certain medical disorders should consult a physician before taking oral solutions of vitamin E, including those suffering from anemia, blood disorders, liver or kidney diseases and vitamin K deficiency.