Brain Zaps ⚡️ 🧠 What SSRIs Do SSRIs — like Zoloft (sertraline), Prozac (fluoxetine), Lexapro (escitalopram), Celexa (citalopram), and Paxil (paroxetine) — work by increasing serotonin levels in the brain. They block the reabsorption (reuptake) of serotonin, keeping more of it active between neurons. Over time, your brain adjusts to that higher serotonin activity, and your nervous system’s communication patterns adapt to it. ⸻ ⚡ Why Brain Zaps Happen When you suddenly stop or miss doses of an SS