Oh my God I fucking love this song!! Man when this song first came out I’m like this is the shit and till this day. It’s still one of my favorite songs.
Except that the pill reference is to a common metaphor about when you have to put up with these rules and it's not really always fair or a good idea, so the saying is, that is a hard pill to swallow, meaning a dose of knowledge which is particularly uncomfortable. It sticks in your throat like pills that are hard to swallow.
This tune is THE SHIT!! The rhythm section n Homme are LOCKED IN. Bad ass swing groove! I miss Grohl's drumming. He beats the shit out of the skins man