I'll have to have a look at the NHS write up on this as most people get a really bad "metal" taste in their mouth that stays there for ages after. When my mom was on some strange cancer medicine she said to me several times about the drug causing a metal taste in her mouth, sadly I cannot remember what it was called but I know for sure it wasn't Zopiclone related so god knows what that is caused by & what it is actually doing to your body.
I read a few days ago about "Z drugs" causing something called sudden death syndrome too, I'm not joking here you just drop down dead & the site was legit, I will have a look to see if I can find it again, it makes for quite a read to say the least.
Kinda glad I spent my last few with some cider yesterday & ended up watching some movie called Bad Lieutenant: Port of Call New Orleans with that Nicholas Cage in, if I ever became a cop that is 100% how I'd go on, that film is amazing I swear to God.
FFS LOLOLOLOLOL