It’s bizarre even as an American who is used to it. The most amusing thing is they’re clearly running out of good ideas for names. The names are getting stranger every year. They’re basically just gibberish now.
The name isn't supposed to make an actual claim about effectiveness--you can't call it "cancercurazine"--but they often try for something vaguely suggestive: Viagra sounds like it makes you 'vital', Wellbutrin makes you feel well, Zyban keeps you away from nicotine, etc.
I've heard--but can't find a source saying--that this is why varenicline is sold under two different names: someone felt like 'champix' was too suggestive.