Welcome back to Chapter 3Medications: What You Need to Know, from my latest book, Behind the Wheel with Autism.
One of the biggest mistakes people make when talking about antidepressants is treating them like they all do the same thing.
And they really don’t.
Right now Chapter 3 treats antidepressants somewhat broadly. But readers may benefit from understanding that some antidepressants are relatively activating, some are calming, some are sedating, and some affect sleep heavily. (This was news to me! So I made 3 handy charts for you that compare the properties of the major antidepressants and their sedation levels here.)
Some people start a medication and suddenly feel more awake, more motivated, more emotionally steady. Other people feel calmer but slower. Some sleep better for the first time in years. Others lie awake staring at the ceiling at two in the morning feeling strangely restless.
You can get through school feeling slightly groggy. You can sit through dinner while mentally foggy. You can scroll your phone while tired, overstimulated, emotionally flat, or distracted and nobody notices. But driving demands something sharper.
That’s why antidepressants can sometimes help driving readiness and complicate it at the exact same time. It’s never simple, is it?
Take medications like Wellbutrin, Prozac, Zoloft, or higher-dose Effexor. These are generally considered more “activating” antidepressants.
For some autistic teens and adults, that can be incredibly helpful. Someone who was exhausted, withdrawn, anxious, or mentally shut down may suddenly feel more capable of engaging with driving lessons at all. They may tolerate transitions better, feel less emotionally overwhelmed, or simply have enough energy to practice consistently.
But “activating” doesn’t always mean comfortable, especially early on.
Some readers have said they hate that restless, jittery “wired” feeling. It can affect concentration too, particularly in busy traffic or unpredictable situations.
Trazodone, mirtazapine (Remeron), paroxetine (Paxil), or older tricyclic antidepressants are often prescribed when anxiety and sleep problems become overwhelming. And anxiety, sleep problems, and depression are all common on the spectrum.
Mirtazapine is especially interesting because many people describe it as deeply calming. It’s commonly prescribed off-label in autistic teens and adults for anxiety, sleep problems, appetite issues, or emotional distress. Some people love it because it feels gentler than activating SSRIs. Others struggle with daytime fatigue, weight gain, or that lingering “I’m still waking up” feeling well into the morning.
Trazodone can create something similar. Some of my autism parents tell me they think of it less as an antidepressant and more as “the medication that knocks my kid out at night.” If someone takes it too late in the evening, they may feel groggy behind the wheel the next morning without fully connecting the dots.
These medications can genuinely change lives for people who haven’t slept properly in months or years. Better sleep can improve emotional regulation, attention, sensory tolerance, and overall daily functioning.
But sedation can have an alarming reality the next morning.
Feeling groggy during the first hour or two after waking up matters when somebody is trying to merge into traffic at 7:30 in the morning. It feels like there’s not enough coffee in the world to get you going!
It’s not necessarily “falling asleep at the wheel” sedation, but a slowness that reveals itself when that jerk in the BMW is riding your bumper, or cuts in front of you.
Timing matters too. For autistic teens and adults who also struggle with ADHD or executive functioning difficulties, inconsistent medication timing can quietly create inconsistent driving performance.
Taking a nighttime medication too late may leave you groggy the next morning. Missing doses can create withdrawal symptoms in some antidepressants — dizziness, nausea, emotional instability, even the “brain zaps” many patients describe.
(Brain zaps1 are strange electric shock–like sensations. People describe them differently—some say it feels like a jolt, others like a brief ‘whoosh’ in the head when they move too quickly.)
Depression affects driving. Anxiety affects driving. Poor sleep affects driving. Emotional overwhelm affects driving. Treatment can absolutely help with all of those things.
But treatment can also subtly influence attention, timing, alertness, and reaction speed at the same time.
And this is why the conversation around antidepressants and driving should stay thoughtful rather than simplistic. Both things can be true together.
So what can you do if you’re taking antidepressants? Here are 3 things that I think could be helpful:
- Ask your pharmacist if your medication tends to be activating, calming, or sedating (or just look it up—there’s good info online too) And don’t forget to check out those comparison charts I made here.
- Then ask yourself how it’s making you feel.
- If it’s too sedating, talk with the prescribing doctor about switching to one that won’t slow you down as much.
Check back next time as we explore anti-seizure medications and their potential impact on driving. About one-third of autistic people may experience seizures, which can significantly affect driving safety on their own—and the medications used to treat them may add additional challenges as well.
Curious about those ‘brain zaps?”: