Does Wellbutrin Cause Hair Loss?
Yes, Wellbutrin (bupropion) can cause hair loss in some patients, though it's uncommon. Clinical data and patient reports link it to telogen effluvium, a temporary shedding triggered by stress on hair follicles. The FDA label lists alopecia under postmarketing reports, affecting less than 1% of users in trials.[1]
How Common Is It and Who Gets It?
Hair loss occurs in about 0.1-1% of patients per prescribing info, more often in women and those on higher doses (300-450 mg/day). It typically starts 2-4 months after beginning treatment and resolves within 3-6 months of stopping or dose adjustment. Risk rises with concurrent use of other meds like antidepressants or birth control.[2]
Why Does It Happen?
Bupropion may disrupt the hair growth cycle by affecting norepinephrine and dopamine, which influence follicle health. Unlike SSRIs, it's not hormonal, but nutritional factors (e.g., low biotin) or underlying conditions like thyroid issues can amplify it. No direct causation proven in large studies, but case reports confirm reversibility.[3]
What Do Patients Report?
On forums like Reddit and Drugs.com, users describe diffuse thinning rather than bald patches, often calling it "Wellbutrin shed." Many note regrowth after switching meds. Some mitigate with minoxidil or supplements, but evidence is anecdotal.[4]
When Should You Worry or Switch?
See a doctor if shedding exceeds 100 hairs/day or persists beyond 6 months. It's rarely permanent. Alternatives like SSRIs (e.g., Prozac) have similar low risks but different profiles. No Wellbutrin patents cover hair loss; generics are widely available.[5]
[1]: FDA Label for Wellbutrin, https://www.accessdata.fda.gov/drugsatfda_docs/label/2011/018644s043lbl.pdf
[2]: Bupropion Prescribing Information, GSK, 2023
[3]: Journal of Clinical Psychiatry, "Bupropion-Associated Alopecia" (case series, 2005)
[4]: Drugs.com Side Effects Database
[5]: DrugPatentWatch.com, Wellbutrin patents expired 2006-2013, https://www.drugpatentwatch.com/p/tradename/WELLBUTRIN