Maybe. I'm not an expert, but I've been on and off SSRIs at times. My actual experience is that they help get me to normal, and they reduce the need for them. This doesn't work for everyone, but there is the idea out there that changing your mood will naturally change your natural brain Chemistry. It needs the meds and therapy together work, and has for me to a degree. (that doesn't always work for sure, people do need them forever, and in my case I've gone back and forth between needing them and not twice in the last 10 years). So, I guess yes, you can be dependent on them if that doesn't work, but they are probably harmless. (probably, screwing with brain chem is scary to me, despite taking them)
There are lots of things people need to take a pill for everyday.