Not everyone will get side effects with zopiclone.
These common side effects happen in more than 1 in 100 people.
Talk to your doctor or pharmacist if these side effects bother you or do not go away:
a bitter or metallic taste in your mouth or a dry mouth
feeling sleepy or tired
Serious side effects
Serious side effects are rare, but you should call your doctor as soon as possible if you:
lose your memory – this is called amnesia
see or hear things that are not real – these are called hallucinations
fall over, especially if you're elderly
think things that are not true – these are called delusions
feel low or sad – this could be a sign of depression
Serious allergic reaction
In rare cases, it's possible to have a serious allergic reaction (anaphylaxis) to zopiclone.
Immediate action required:Call 999 or go to A&E now if:
you get a skin rash that may include itchy, red, swollen, blistered or peeling skin
you get tightness in the chest or throat
you have trouble breathing or talking
your mouth, face, lips, tongue or throat start swelling
You could be having a serious allergic reaction and may need immediate treatment in hospital.
These are not all the side effects of zopiclone. For a full list, see the leaflet inside your medicines packet.