Are Wellbutrin and bupropion the same drug?
Yes. Wellbutrin is a brand name for the drug bupropion. Bupropion and Wellbutrin refer to the same active medication, but they may be sold in different brand products and strengths (for example, different release forms). [1]
Why do people think they’re different?
They can feel different because “Wellbutrin” products come in specific formulations and release types (such as sustained-release or extended-release), which affect how the medicine is released in the body. Even though the active ingredient is bupropion, dosing schedules can differ by the specific product. [1]
Is it safe to switch between Wellbutrin and generic bupropion?
Because they share the same active ingredient, generic bupropion is typically considered interchangeable with the corresponding Wellbutrin formulation, but the exact dose and release type matter. Switching between different release forms (or different strengths) should be handled by a clinician or pharmacist to match the correct formulation and dosing. [1]
Does this apply to all “Wellbutrin-type” products?
Generally, brand-name products labeled as Wellbutrin contain bupropion as the active ingredient, but you should check the specific label to confirm the release type and strength. Some other brand or combination products may also contain bupropion, but not every product marketed alongside Wellbutrin is identical in formulation.
Sources:
[1] https://www.drugs.com/ingredient/bupropion.html