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ARIMIDEX® (anastrozole) tablets for oral
1 mg of anastrozole, a non-steroidal
aromatase inhibitor. It is chemically described as 1,3-Benzenediacetonitrile,
a, a, a',
Its molecular formula is C17H19N5
Anastrozole is an off-white powder with a molecular weight
of 293.4. Anastrozole has moderate aqueous
solubility (0.5 mg/mL at 25°C); solubility
is independent of pH in the physiological
range. Anastrozole is freely soluble
in methanol, acetone, ethanol, and tetrahydrofuran, and very soluble
Each tablet contains as inactive
ingredients: lactose, magnesium
stearate, hydroxypropylmethylcellulose, polyethylene glycol, povidone,
glycolate, and titanium dioxide.