Yes, and the N stands for Norepinephrine. Serotonin and Norepinephrine are brain neurotransmitters. SSRIs and SNRIs were named that because at the time, we believed they "worked" by adjusting the levels of these neurotransmitters. Now we're learning that's not true, so these drugs were wrongly named all these years. We're not sure how SSRIs and SNRIs actually work to relieve depression, as the model we believed for 30 years or so is now turning out to be wrong. Some believe neurogenesis in the memory area of the brain is actually how they (supposedly) work. It's a little disturbing that we don't know. I'm glad you're free of them too.