Vitamin E (vitamin E)
Vitamin E Oral Capsule; Oral Drops; Topical Oil (Ml)
Last reviewed · Source: First Databank (FDB) drug data
Overview
USES: This medication is used as a moisturizer to treat or prevent dry, rough, scaly, itchy skin and minor skin irritations (such as diaper rash, skin burns from radiation therapy). Emollients are substances that soften and moisturize the skin and decrease itching and flaking. Some products (such as zinc oxide, white petrolatum) are used mostly to protect the skin against irritation (such as from wetness).
Dry skin is caused by a loss of water in the upper layer of the skin. Emollients/moisturizers work by forming an oily layer on the top of the skin that traps water in the skin. Petrolatum, lanolin, mineral oil and dimethicone are common emollients.
Humectants, including glycerin, lecithin, and propylene glycol, draw water into the outer layer of skin. Many products also have ingredients that soften the horny substance (keratin) that holds the top layer of skin cells together (including urea, alpha hydroxy acids such as lactic/citric/glycolic acid, and allantoin). This helps the dead skin cells fall off, helps the skin keep in more water, and leaves the skin feeling smoother and softer.
Generic name: vitamin E
Drug class: Vitamin E
Therapeutic class: Electrolyte Balance-Nutritional Products
Reference product & biosimilars
No reference, biosimilar or interchangeable associated with this drug.
Today’s intelligence on Vitamin E
Indications
No indications are available for this drug.
Dosing
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Drug interactions
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There are no contraindication interactions for this drug.
Severe Interaction: Action is required to reduce the risk of severe adverse interaction.
Vitamin E (Alpha Tocopherol) >=800 Unit/Slt Anticoag (Vit K)
SEVERITY LEVEL: 2-Severe Interaction: Action is required to reduce the risk of severe adverse interaction.
MECHANISM OF ACTION: Vitamin E may decrease vitamin K-dependent clotting factors, resulting in additive effects with vitamin K antagonists.(1)
CLINICAL EFFECTS: Dose of vitamin E of 800 units/day or more may increase the pharmacologic effects of vitamin K antagonists.(1-7)
PREDISPOSING FACTORS: None determined.
PATIENT MANAGEMENT: Patients receiving vitamin E supplements of 800 units/day or more may require lower dosages of vitamin K antagonists. In patients maintained on warfarin who initiate vitamin E supplements in dosages of 800 units/day or more, measured INR one to two weeks after initiation of vitamin E and also every two to four weeks during the first two months.(2)
DISCUSSION: Vitamin E doses up to 400 units/day is believed not to affect the prothrombin time in patients concomitantly receiving warfarin.(2) Vitamin E doses of 800 International Units/day and more have been reported to increase the hypoprothrombinemic effect of warfarin. However, in a double blind clinical trial, with only 13 subjects completing the study, patients who had received chronic warfarin therapy with the addition of vitamin E dose as high as 1,200 IU/day for 1 month saw negligible change in the INR or prothrombin time.(3) Selumetinib capsules contain a significant amount of vitamin E. Each 10 mg capsule contains 32 mg (48 units) and each 25 mg capsule contains (54 units) of vitamin E. The daily dose of selumetinib may contain up to 256 mg (384 units) of vitamin E. Vitamin E supplementation is not recommended if it will result in a daily vitamin E intake exceeding recommended or safe amounts.(4) Agenerase brand of amprenavir capsules and oral solution contain a significant amount of vitamin E. Each 150 mg capsule contains 109 International Units vitamin E, with a total of 1,744 International Units of vitamin E in the recommended daily adult dose. Each mL of oral solution contains 46 International Units of vitamin E.(5) One or more of the drug pairs linked to this monograph have been included in a list of interactions that could be considered for classification as "non-interruptive" in EHR systems. This DDI subset was vetted by an expert panel commissioned by the U.S. Office of the National Coordinator (ONC) for Health Information Technology.
Moderate Interaction: Assess the risk to the patient and take action as needed.
Fat Soluble Vitamins/Colesevelam
SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed.
MECHANISM OF ACTION: Colesevelam may decrease the absorption of fat-soluble vitamins A, D, E, and K.(1)
CLINICAL EFFECTS: Colesevelam may reduce absorption of fat soluble vitamins, leading to a deficiency state.
PREDISPOSING FACTORS: A pre-existing deficiency of fat soluble vitamins (A,D,E and K) or chronic malabsorption syndrome.
PATIENT MANAGEMENT: The inhibition of fat soluble vitamin absorption by colesevelam should be borne in mind during implementation of a vitamin supplementation strategy. Oral multivitamin supplements should be taken at least four hours before the dose of colesevelam.(1)
DISCUSSION: Colesevelam may decrease the absorption of fat-soluble vitamins A, D, E, and K.(1)
Fat Soluble Vitamins/Orlistat
SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed.
MECHANISM OF ACTION: The acetate ester forms of vitamin A and vitamin E must undergo hydrolysis for absorption from the gastrointestinal tract.(1) The enzyme responsible for this hydrolysis is inhibited by orlistat.(2)
CLINICAL EFFECTS: Orlistat may reduce absorption of fat soluble vitamins, leading to a deficiency state.
PREDISPOSING FACTORS: A pre-existing deficiency of fat soluble vitamins (A,D,E and K) or chronic malabsorption syndrome.
PATIENT MANAGEMENT: The inhibition of fat soluble vitamin absorption by orlistat should be borne in mind during implementation of a vitamin supplementation strategy. Patients should be strongly encouraged to take a multivitamin supplement which contains fat soluble vitamins, particularly Vitamin D as it appears most susceptible to this interaction.(4,5) Multivitamin supplements should be taken at least two hours before or after the dose of orlistat, or at bedtime.(4) Patients with chronic malabsorption syndromes should not receive orlistat.(4)
DISCUSSION: Adult patients taking orlistat without supplementation showed a greater reduction in vitamin A,D,E and beta-carotene levels compared to placebo during two or more consecutive visits in studies of 1-2 years duration; these patients had normal baseline values prior to orlistat therapy. Low vitamin values in orlistat patients were as follows: low Vitamin D 12%, low beta-carotene 6.1%, low Vitamin E 5.8%, low Vitamin A 2.2%.(4) A pharmacokinetic interaction study showed a 30% reduction in beta-carotene supplement absorption and a 60% decreased in vitamin E acetate absorption with concomitant orlistat.(4) In a study, orlistat produced the vitamin net concentration by approximately 43%.(1) In a study, no statistically significant decrease in vitamin A absorption was observed with concurrent orlistat.(2) In a study, mean vitamin D levels were significantly reduced compared with baseline after one month of orlistat therapy despite multivitamin supplementation.(5)
Contraindications
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There are no contraindication contraindications for this drug.
There are no severe contraindications for this drug.
- Increased risk of bleeding due to coagulation disorder
- Vitamin K deficiency induced hypoprothrombinemia
Adverse reactions
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Rare or Very Rare
- Hemorrhage
Rare or Very Rare
- Abdominal pain with cramps
- Blurred vision
- Diarrhea
- Fatigue
- General weakness
- Headache disorder
- Mastalgia
- Nausea
- Skin rash
- Thrombophlebitis
Precautions
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ICD codes
| Code | Type | Description |
|---|---|---|
| Vitamin E deficiency | ||
| E56.0 | ICD10CM | Deficiency of vitamin E |
ICD code information from First Databank (FDB).
Formulary status
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Last reviewed · Source: First Databank (FDB) drug data
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