Is it because the brain is flooded with dopamine or something? It's been some time since I've taken SSRIs and I think it never takes effect because of me still doing PMO.
https://everaccountable.com/blog/how-pornography-affects-your-brain/ https://fightthenewdrug.org/3-lies-most-people-believe-about-porn-and-the-brain/
This is why Prozac and Zoloft stopped working for me. I did so much PMO, that the receptors literally don't react to the antidepressant drugs anymore.
I red somewhere that it takes 1 week to start reducing the urges and 2 weeks or more to reduce anxiety or depression. https://www.reddit.com/r/NoFap/comments/98fadp/my_research_for_nofap_hope_it_helps/
I don't remember. I personally wouldn't bother with shitty antidepressants ever again, because they didn't fix me and they won't as long as I'm desensitized from porn because they aren't the best way compared to diet and exercise to solve someone's problems and they don't solve the root of someone's problems only mask them.
Don't take SSRIs alone. Combine it with proper diet and exercise. Sometimes low serotonin/serotonin deficiency is the root of someone's problems too. So you can fix it with a SSRI or a supplement but not both.