What are the major over the counter and prescribtion drugs made by Glaxo Smith Kline (G.S.K.)?

Question

What are the major OTC and prescrip. drugs from Glaxo Smith Kline (G.S.K.)

Specifically in the U.S. market, but since they're a U.K. based company, what about the U.K. and the world at large as well?

Sources would be great, but if people just know some because they use them that's fine too.

Answer 1

Advair, Flonase, Paxil, Valtrex, Wellbutrin and Zantac...

among many others.