gerardward writes: The chemical composition of this drug is based on Adrafinil, which is an older medicine produced in the ‘70s. But this drug is converted into modrafinil, which is less effective. Adrafinil was taken out of the market because of its ability to cause stomach pain, feeling of tension and other serious negative reactions. But Armodafinil is not known to affect your liver function. Hence, it is safe for human consumption.