Do not worry absolutely,oral is more dangerous on blood lipids rather than the liver,in the past i run anadrol 100mg day for two month and the biggest side from it,was its activity on hdl and ldl. No fake anadrol becouse i used the original turkey anapolon.
The dangerousneess of oral on liver is very enphasized. Side like aromatization from dianabol is more dangerous that liver side. Also on patient with plastic anemia was usually used dosage of mister olimpia and sometimes there were no permanent liver damage.
You can safely run dianabol 50 mg for three month,but yes,i suggest always check transaminases.