If you think you need to take zopiclone for more than 7 to 10 days, be sure to discuss it with your doctor. Insomnia that lasts longer than this may be a sign of another medical problem.
This medicine will add to the effects of alcohol and other CNS depressants (medicines that cause drowsiness). Some examples of CNS depressants are antihistamines or medicine for hay fever, other allergies, or colds; sedatives, tranquilizers, or sleeping medicine; prescription pain medicine or narcotics; barbiturates; medicine for seizures; muscle relaxants; or anesthetics, including some dental anesthetics. Check with your doctor before taking any of the above while you are using this medicine.
This medicine may cause some people, especially older persons, to become drowsy, dizzy, lightheaded, clumsy or unsteady, or less alert than they are normally. Even though zopiclone is taken at bedtime, it may cause some people to feel drowsy or less alert on arising. Make sure you know how you react to zopiclone before you drive, use machines, or do anything else that could be dangerous if you are dizzy, or are not alert or able to see well.
If you develop any unusual and strange thoughts or behavior while you are taking zopiclone, be sure to discuss it with your doctor. Some changes that have occurred in people taking this medicine are like those seen in people who drink alcohol and then act in a manner that is not normal. Other changes may be more unusual and extreme, such as confusion, worsening of depression, hallucinations (seeing, hearing, or feeling things that are not there), suicidal thoughts, and unusual excitement, nervousness, or irritability.
If you will be taking zopiclone for a long time, do not stop taking it without first checking with your doctor. Your doctor may want you to gradually reduce the amount you are taking before stopping completely. Stopping this medicine suddenly may cause withdrawal side effects.
After taking zopiclone for insomnia, you may have difficulty sleeping (rebound insomnia) for the first few nights after you stop taking it.
If you think you or someone else may have taken an overdose of this medicine, get emergency help at once. Taking an overdose of zopiclone or taking alcohol or other CNS depressants with zopiclone may lead to breathing problems and unconsciousness. Some signs of an overdose are clumsiness or unsteadiness, mental or mood changes, severe drowsiness, or unusual tiredness or weakness.