Wellbutrin (Bupropion Hydrochloride)

Wellbutrin is a widely recognized antidepressant and smoking cessation aid. It was originally developed by Burroughs Wellcome & Company in the 1960s and 1970s. The brand has a long history in the pharmaceutical industry, known for its active ingredient, bupropion hydrochloride.

Today, the brand is owned and distributed by GSK (formerly GlaxoSmithKline). While the brand originated with the British company Burroughs Wellcome (predecessor to GSK), the manufacturing of various formulations—including Wellbutrin XL and SR—is handled across a global network of specialized pharmaceutical facilities in countries such as Canada, Germany, and the United Kingdom.

As of the mid-2020s, GSK remains the ultimate owner of the original brand name, though generic versions are produced by many other global pharmaceutical firms.