Bupropion XL works for SAD prevention, but it’s not your only option.

Bupropion XL (Wellbutrin) is FDA-approved specifically for prevention of seasonal affective disorder (SAD) — the only antidepressant with that indication.

The idea is simple: start taking it in the fall before symptoms kick in, and keep going through the winter. The data says it significantly reduces the chance of a depressive episode, particularly for people with a history of recurrent winter sadness. It’s not a cure, but it’s a solid preventative.

How does it stack up against other antidepressants? Most SAD studies focus on SSRIs like fluoxetine (Prozac) or light therapy. SSRIs work fine, but they have their own baggage — sexual side effects, weight gain, that emotional flattening feeling. Bupropion tends to be more activating, which can be great for the sluggish, oversleeping, carb-craving kind of SAD. Downsides: it can make you jittery or anxious, and it’s not great for people with seizure history or eating disorders.

For late-winter episodes specifically (January–March), timing matters more than the drug choice. The key is starting early enough that you’re at steady state before the sun disappears. Bupropion’s long half-life means you don’t have to time it perfectly, but you still want to be on it by late September or October.

Bottom line: Bupropion XL is the only FDA-approved SAD prevention, and it’s a good option if your winter pattern looks like a classic hibernation mode. But if you’re already on an SSRI that works for you, don’t switch just because of the label.

If you’re managing late-winter episodes, start talking to your doctor in August. Your future February self will thank you.