at 50mg a day, you should feel strenght increase within a week.
after 2 weeks, you should be up at least 8 pounds in weight. (most being water).
if you choose to go for for weeks, your liver will not like it, but you will probably gain anywhere between 15-20 pounds of weight. (most being water) although strength increase will roof!
anadrol IMO is not a good choice to run alone.
its best use IMO is to kickstart a cycle for 2 weeks at 50-100mg a day.