Cymbalta or duloxetine is an antidepressant in a group of drugs called selective serotonin and norepinephrine reuptake inhibitors. There are two types of fatty liver:develops due to excessive consumption of alcohol and the other that develops in non-drinkers. It is important that food habits: lack or very low physical activity and being overweight may be modified. Take care and do keep us posted.
There is a risk from duloxetine in general can cause kidney and liver trouble in some, drinking alcohol while on this drug increases this likely hood and if your a alcoholic then my advice is to have 6 month blood tests of your kidney and liver functions. So if you don’t drink then it is extremely unlikely that this drug will cause your liver to become fatty