Vitamin E is a general term used to refer to a large number of natural or synthetic compounds. Tocopherols are the most common compounds, of which alpha tocopherols are the most active and widely distributed in nature. Alpha tocopherols occur naturally in the d optical isomer form and is more active than the synthetic racemic dl form. d-α-tocopheryl acetate is the acetate ester of natural source d-α-tocopherol. Other naturally occurring tocopherols e.g. beta, gamma, and delta tocopherols are not used clinically. Tocotrienols are another group of compounds with vitamin E activity. Vitamin E, a fat soluble vitamin, reacts with free radicals and protects RBCs against haemolysis and polysaturated fatty acids in membranes against free radical attack.
E-Gel 400 Capsule
Vitamin E deficiency:
Adult: 40-50 mg of d-α tocopherol daily.
Child: Neonate: 10 mg/kg once daily; 1 mth-18 yr: 2-10 mg/kg/day, up to 20 mg/kg.
Adult: 50-100 mg/kg daily of dl-α-tocoferil acetate or about 33-67 mg/kg daily of d-α-tocopherol.
Child: Neonate: 100 mg/kg once daily; 1 mth-18 yr: 50-100 mg/kg once daily.
Supplementation in cystic fibrosis:
Adult: 100-200 mg daily of dl-α-tocoferil acetate or 67-135 mg daily of d-α-tocopherol.
Child: As α- tocopheryl acet