Each film-coated tablet contains: Letrozole 2.5 mg.
Letrozole tablets (Letov) for oral administration contains 2.5 mg of letrozole, a nonsteroidal aromatase inhibitor (inhibitor of estrogen synthesis). It is chemically described as 4, 4'-(1H-1, 2, 4-Triazol-1-ylmethylene)dibenzonitrile, Letrozole is a white to yellowish crystalline powder, practically odorless, freely soluble in dichloromethane, slightly soluble in ethanol, and practically insoluble in water. It has a molecular weight of 285.31, empirical formula C17H11N5, and a melting range of 184°C-185°C.
Letrozole tablets are available as 2.5 mg tablets for oral administration.