VITAMIN E

Vitamin E is a fat-soluble vitamin, which plays a role as an antioxidant in the body. It is found in many foods including vegetable oils, cereals, meat, poultry, eggs, fruits, vegetables, and wheat germ oil. It is also available as a supplement.

Effective for:

  • Movement disorder (ataxia) associated with vitamin E deficiency. The genetic movement disorder called ataxia causes severe vitamin E deficiency. Vitamin E supplements are used as part of the treatment for ataxia.
  • Vitamin E deficiency. Taking vitamin E by mouth is effective for preventing and treating vitamin E deficiency.

 

Possibly effective for:

  • Alzheimer’s disease. Vitamin E might slow down the worsening of memory loss in people with moderately severe Alzheimer’s disease. Vitamin E might also delay the loss of independence and the need for caregiver assistance in people with mild-to-moderate Alzheimer’s disease. However, vitamin E does not seem to prevent moving from mild memory problems to full-blown Alzheimer’s disease.
  • Anemia. Some research shows that that taking vitamin E improves the response to the drug erythropoietin, which affects red blood cell production, in adults and children on hemodialysis.
  • Blood disorder (beta-thalassemia). Taking vitamin E by mouth seems to benefit children with the blood disorder called beta-thalessemia and vitamin E deficiency.
  • Bladder cancer. Taking 200 IU of vitamin E by mouth for more than 10 years seems to help prevent death from bladder cancer.
  • Leakage of chemotherapy drug into surrounding tissue. Applying vitamin E to the skin together with dimethylsulfoxide (DMSO) seems to be effective for treating leakage of chemotherapy into surrounding tissues.
  • Chemotherapy-related nerve damage. Taking vitamin E (alpha-tocopherol) before and after treatment with cisplatin chemotherapy might reduce the risk of nerve damage.
  • Dementia. Research suggests that men who consume vitamin E and vitamin C have a decreased risk of developing several forms dementia. However, it does not appear to reduce the risk for Alzheimer’s dementia.
  • Painful menstruation (dysmenorrhea). Taking vitamin E for 2 days before and for 3 days after bleeding begins seems to decrease pain severity and duration, and reduce menstrual blood loss.
  • Movement and coordination disorder called dyspraxia. Taking vitamin E by mouth together with evening primrose oil, thyme oil, and fish oils seems to improve movement disorders in children with dyspraxia.
  • Kidney problems in children (glomerulosclerosis). There is some evidence that taking vitamin E by mouth might improve kidney function in children with glomerulosclerosis.
  • An inherited disorder called G6PD deficiency. Some research shows that taking vitamin E by mouth, alone or together with selenium, might benefit people with an inherited disorder called G6PD deficiency.
  • Healing a type of skin sore called granuloma annulare. Applying vitamin E to the skin seems to clear up skin sores called granuloma annulare.
  • Huntington’s disease. Natural vitamin E (RRR-alpha-tocopherol) can improve symptoms in people with early Huntington’s disease. However, it does not seem to help people with more advanced disease.
  • Male infertility. Taking vitamin E by mouth improves pregnancy rates for men with fertility problems. Taking high doses of vitamin E together with vitamin C does not seem to provide the same benefits.
  • Bleeding within the skull. Taking vitamin E by mouth seems to be effective for treating bleeding in the skull in premature infants.
  • Bleeding within the ventricular system of the brain. Taking vitamin E by mouth seems to be effective for treating bleeding within the ventricular system of the brain in premature infants.
  • Nitrate tolerance. There is some evidence that taking vitamin E daily can help prevent nitrate tolerance.
  • Liver disease called nonalcoholic steatohepatitis. Taking vitamin E daily seems to improve symptoms of NASH in adults and children.
  • Parkinson’s disease. Early evidence suggests that vitamin E intake in the diet might be linked with a decreased risk of Parkinson’s disease. However, taking all-rac-alpha-tocopherol (synthetic vitamin E) does not seem to have any benefit for people with Parkinson’s disease.
  • Laser eye surgery (photoreactive keratectomy). Taking high doses of vitamin A along with vitamin E (alpha-tocopheryl nicotinate) daily seems to improve healing and vision in people undergoing laser eye surgery.
  • Premenstrual syndrome (PMS). Taking vitamin E by mouth seems to reduce anxiety, craving, and depression in some women with PMS.
  • Physical performance. Research suggests that increasing vitamin E intake in the diet is linked with improved physical performance and muscle strength in older people.
  • Fibrosis caused by radiation. Taking vitamin E by mouth with the drug pentoxifylline seems to treat fibrosis caused by radiation. However, taking vitamin E alone does not seem to be effective.
  • An eye disease in newborns called retinopathy of prematurity. Taking vitamin E by mouth seems to be effective for treating an eye disease cause retinopathy of prematurity in newborns.
  • Rheumatoid arthritis (RA). Vitamin E taken along with standard treatment is better than standard treatment alone for reducing pain in people with RA. However, this combination does not reduce swelling.
  • Sunburn. Taking high doses of vitamin E (RRR-alpha-tocopherol) by mouth together with vitamin C protects against skin inflammation after exposure to UV radiation. However, vitamin E alone does not provide the same benefit. Applying vitamin E to the skin, together with vitamin C and melatonin, provides some protection when used before UV exposure.
  • Movement disorder (tardive dyskinesia). Taking vitamin E by mouth seems to improve symptoms associated with the movement disorder called tardive dyskinesia. However, some other research suggests that it does not improve symptoms, but may prevent symptoms from worsening.
  • Swelling in the middle layer of the eye (uveitis). Taking vitamin E with vitamin C by mouth seems to improve vision, but does not reduce swelling, in people with uveitis.

Some research suggests that high doses might increase the chance of death and possibly cause other serious side effects. The higher the dose, the greater the risk of serious side effects.

There is some concern that vitamin E might increase the chance of having a serious stroke called hemorrhagic stroke, which is bleeding into the brain. Some research shows that taking vitamin E in doses of 300-800 IU each day might increase the chance of this kind of stroke by 22%. However, in contrast, vitamin E might decrease the chance of having a less severe stroke called an ischemic stroke.

There is contradictory information about the effect of vitamin E on the chance of developing prostate cancer. Some research suggests that taking large amounts of a multivitamin plus a separate vitamin E supplement might actually increase the chance of developing prostate cancer in some men.

High doses can also cause nausea, diarrhea, stomach cramps, fatigue, weakness, headache, blurred vision, rash, and bruising and bleeding.

Vitamin E is LIKELY SAFE for most healthy people when taken by mouth or applied to the skin. Most people do not experience any side effects when taking the recommended daily dose, which is 15 mg.

Vitamin E is POSSIBLY UNSAFE if taken by mouth in high doses. If you have a condition such as heart disease or diabetes, do not take doses of 400 IU/day or more.

Precautions

Ask a doctor or pharmacist if it is safe for you to use vitamin E if you have other medical conditions, especially:

  • anemia (low red blood cells);
  • a bleeding or blood clotting disorder such as hemophilia;
  • liver disease;
  • kidney disease;
  • any allergies;
  • an eye disorder called retinitis pigmentosa;
  • a vitamin K deficiency;
  • high cholesterol or triglycerides (a type of fat in the blood);
  • a history of cancer;
  • a history of stroke or blood clot; or
  • if you need surgery, or have recently had surgery.

 

Interactions

  • Cyclosporine (Neoral, Sandimmune) interacts with VITAMIN E
  • Taking large amounts of vitamin E along with cyclosporine (Neoral, Sandimmune) might increase how much cyclosporine (Neoral, Sandimmune) the body absorbs. By increasing how much cyclosporine the body absorbs, vitamin E might increase the effects and side effects of cyclosporine (Neoral, Sandimmune).
  • Medications changed by the liver (Cytochrome P450 3A4 (CYP3A4) substrates) interacts with VITAMIN E
  • Some medications are changed and broken down by the liver. Vitamin E might increase how quickly the liver breaks down some medications. Taking vitamin E along with some medications that are broken down by the liver can decrease the effectiveness of some medications. Before taking vitamin E talk to your healthcare provider if you are taking any medications that are changed by the liver.Some medications changed by the liver include lovastatin (Mevacor), ketoconazole (Nizoral), itraconazole (Sporanox), fexofenadine (Allegra), triazolam (Halcion), and many others.
  • Medications for cancer (Chemotherapy) interacts with VITAMIN E
  • Vitamin E is an antioxidant. There is some concern that antioxidants might decrease the effectiveness of some medications used for cancers. But it is too soon to know if the interaction occurs.
  • Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with VITAMIN E
  • Vitamin E might slow blood clotting. Taking vitamin E along with medications that also slow clotting might increase the chances of bruising and bleeding.Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.
  • Medications used for lowering cholesterol (Statins) interacts with VITAMIN E
  • Taking vitamin E, beta-carotene, vitamin C, and selenium together might decrease the effectiveness of some medications used for lowering cholesterol. It is not known if taking vitamin E alone decreases the effectiveness of some medications used for lowering cholesterol.Some medications used for lowering cholesterol include atorvastatin (Lipitor), fluvastatin (Lescol), lovastatin (Mevacor), and pravastatin (Pravachol).
  • Niacin interacts with VITAMIN E
  • Taking vitamin E along with beta-carotene, vitamin C, and selenium might decrease some of the beneficial effects of niacin. Niacin can increase the good cholesterol. Taking vitamin E along with these other vitamins might decrease the good cholesterol.
  • Warfarin (Coumadin) interacts with VITAMIN E
  • Warfarin (Coumadin) is used to slow blood clotting. Vitamin E can also slow blood clotting. Taking vitamin E along with warfarin (Coumadin) can increase the chances of bruising and bleeding. Be sure to have your blood checked regularly. The dose of your warfarin (Coumadin) might need to be changed.

Stop taking vitamin E and go to the nearest hospital at once if you have:

  • headache, dizziness, vision changes;
  • a light-headed feeling, like you might pass out;
  • unusual weakness or tired feeling;
  • diarrhea, stomach cramps; or.
  • easy bruising or bleeding (nosebleeds, bleeding gums).

 

Available brands:

  • Enervon-E (UAP)
  • Myra 300 E (Innovitelle)
  • Myra 400 E (Innovitelle)
  • GNC Natural E (GNC)
  • Lexivit-E (Korea United Pharma)

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