Patient Leaflet Updated 04-Jun-2026 | Grindeks Kalceks UK
Zopiclone Grindeks 3.75 mg, 5 mg, 7.5 film-coated tablets
Zopiclone Grindeks 3.75 mg film-coated tablets
Zopiclone Grindeks 5 mg film-coated tablets
Zopiclone Grindeks 7.5 mg film-coated tablets
zopiclone
This medicine contains zopiclone, which can cause dependence, tolerance and addiction. You can get withdrawal symptoms if you stop taking it or reduce the dose suddenly.
1. What Zopiclone Grindeks is and what it is used for
2. What you need to know before you take Zopiclone Grindeks
3. How to take Zopiclone Grindeks
4. Possible side effects
5. How to store Zopiclone Grindeks
6. Contents of the pack and other information
This medicine has been prescribed for you:
It contains the zopiclone which belongs to a class of medicines called z-drugs.
This medicine has been prescribed to you and should not be given to anyone else.
Z-drugs can cause dependence, tolerance and addiction, and you may get withdrawal symptoms if you stop taking it or reduce the dose suddenly. Your prescriber should have explained how long you will be taking it for and, when it is appropriate to stop, how to do this safely. When your treatment is stopped, it is usually done gradually over a period which is specific to you and may occur over a period of weeks to months.
General
Talk to your doctor or pharmacist before taking Zopiclone Grindeks.
Before starting treatment with Zopiclone Grindeks, the cause of your sleep problems should be investigated, and any other underlying disease treated.
Tell your doctor if you have or have had any illness or any other medical condition, especially if you:
Your doctor will decide whether you should take Zopiclone Grindeks or not or adjusts your dose. You will be also monitored closely during the treatment.
Talk to your prescriber before taking this medicine if you:
Taking this medicine regularly, particularly for a long time, can lead to physical dependence and addiction. Your prescriber should have explained how long you will be taking it for and, when it is appropriate to stop, how to do this safely. When your treatment is stopped, it is usually done gradually over a period which is specific to you and may occur over a period of weeks to months.
Physical dependence and addiction can cause withdrawal symptoms when you stop taking this medicine. Withdrawal symptoms can include:
Your prescriber will discuss with you how to gradually reduce your dose before stopping the medicine. It is important that you do not stop taking the medicine suddenly as you will be more likely to experience withdrawal symptoms. Your prescriber will ensure that your plan for stopping treatment is tailored to you and can be adapted according to your needs and experience of any withdrawal symptoms.
Z-drugs should only be used by those they are prescribed for. Do not give your medicine to anyone else. Taking higher doses or more frequent doses of Z-drugs, may increase the risk of addiction. Overuse and misuse can lead to overdose and/or death.
Sleeplessness recurring after stopping the treatment (rebound insomnia)
If treatment is stopped abruptly after prolonged use, it sometimes leads sleeplessness for a few nights. This is a temporary syndrome called "rebound insomnia". To avoid any problems with discontinuation after long-term treatment, it is recommended to gradually reduce the dose. See also the section on side effects.
Short-term memory loss, so-called anterograde amnesia
Zopiclone Grindeks may cause a short-term memory loss, especially a few hours after taking the tablet. To reduce the risk of this, take Zopiclone Grindeks just before or after going to bed and make sure you will be able to have an uninterrupted sleep of 7–8 hours.
Psychiatric and "paradoxical reactions"
When using Zopiclone Grindeks, certain mental reactions, such as restlessness and anxiety, nightmares, irritability, aggression, inappropriate behaviour, hallucinations (seeing and hearing things that are not real), confusion, and difficulty concentrating may occur.
Sleepwalking, so-called somnambulism, and associated behaviours
Sleepwalking and other associated behaviours such as ‘sleep driving’, cooking and eating or making phone calls in your sleep, with memory loss of the event, have been reported in patients who have taken zopiclone and were not fully awake.
The risk of such behaviour increases if Zopiclone Grindeks is combined with alcohol or certain other specific medications (e.g., opioid-class painkillers, antipsychotics, hypnotics or anti-anxiety / sedatives). The risk also increases if Zopiclone Grindeks is taken in higher doses than the highest recommended dose. Contact a doctor immediately if you experience any of the above symptoms.
Depression/suicidal thoughts
This medicine is not intended to treat depression. If you also have a depression, your doctor will prescribe appropriate treatment. If depression is left untreated, it can worsen, become persistent or increase possible risk of suicide.
Some studies have shown an increased risk of suicidal thoughts, suicide attempts and suicides in patients taking certain sedatives and hypnotics, including this medicine. However, it has not been established if this is due to the medicine or if there are other reasons. If you have suicidal thoughts, contact your doctor as soon as possible for medical advice.
Risk of fall
Due to the muscle relaxing effect of zopiclone, there is a risk of fall, especially in the elderly when they get up during the night.
Zopiclone Grindeks should not be used by children and adolescents under 18 years of age. Safety and efficacy in children and adolescents under 18 years of age have not been established.
The treatment effect can be affected if Zopiclone Grindeks is taken at the same time as certain other medicines, which means that the dose of Zopiclone Grindeks may need to be adjusted.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
In particular any of the following medicines:
Concomitant use of Zopiclone Grindeks and opioids (strong pain killers, medicines for substitution therapy and some cough medicines) increases the risk of drowsiness, difficulties in breathing (respiratory depression), coma and may be life-threatening. Because of this, concomitant use should only be considered when other treatment options are not possible.
However, if your doctor does prescribe Zopiclone Grindeks together with opioids, the dose and duration of concomitant treatment should be limited by your doctor.
Please tell your doctor about all opioid medicines you are taking and follow your doctor’s dose recommendation closely. It could be helpful to inform friends or relatives to be aware of the signs and symptoms stated above. Contact your doctor when experiencing such symptoms.
Alcohol should be avoided when taking Zopiclone Grindeks as alcohol may increase the effects of Zopiclone Grindeks. The effect may persist until the next morning, which may adversely affect your ability to drive or use machines.
Grapefruit and grapefruit juice should be avoided while taking Zopiclone Grindeks. Grapefruit can increase the effect of Zopiclone Grindeks.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Pregnancy
Use of Zopiclone Grindeks is not recommended during pregnancy since it crosses the placenta. If used during pregnancy, there is a risk that the baby is affected. Some studies have shown that there may be an increased risk of cleft lip and palate in the newborn baby.
Reduced fetal movement and fetal heart rate variability may occur after taking Zopiclone Grindeks during the second and/or third trimester of pregnancy.
If Zopiclone Grindeks is taken at the end of pregnancy or during labour, your baby may show muscle weakness, a drop in body temperature, difficulty feeding and breathing problems (respiratory depression).
If this medicine is taken regularly in late pregnancy, your baby may develop physical dependence and may be at risk of developing withdrawal symptoms such as agitation or shaking. In this case the newborn should be closely monitored during the postnatal period.
Breast-feeding
Zopiclone passes into breast milk. Do not use Zopiclone Grindeks if you are breast-feeding.
You should not drive or use machines until your treatment with Zopiclone Grindeks has ended, or until it has been established that your ability is not impaired. The effect can also persist until the next day.
Side effects of Zopiclone Grindeks that may affect your ability to drive are:
The risk of suffering from the above side effects is greater if you have drunk alcohol and if you have not had enough sleep.
5 mg film-coated tablet contains Cochineal red A (E124) that may cause allergic reactions.
This medicine contains less than 1 mmol (23 mg) sodium per tablet, i.e., is essentially 'sodium-free'.
Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.
The recommended initial dose for adults is one 5 mg or 7.5 mg tablet, taken at bedtime.
For some patients, e.g. elderly or if you have kidney, liver or breathing problems, a lower starting dose at 3.75 mg will be used. Your doctor may later increase the dose to 5 mg and if necessary, up to 7.5 mg. The maximum daily dose is 7.5 mg per day.
How to take Zopiclone Grindeks
Take Zopiclone Grindeks just before going to bed. Do not take the tablets lying down as the uptake in the body might be delayed. Make sure you will be able to have an uninterrupted sleep of 7–8 hours. Swallow the tablet with liquid (e.g. 1/2 glass of water).
Duration of treatment
Your treatment with Zopiclone Grindeks should be as short as possible (a few days to 2 weeks). Your prescriber should have discussed with you how long the course of tablets will last.
They will arrange a plan for stopping treatment. This will outline how to gradually reduce the dose and stop taking the medicine. Your prescriber will ensure that your plan for stopping treatment is tailored to you and can be adapted according to your needs and experience of any withdrawal symptoms. You should not take Zopiclone Grindeks for longer than 4 weeks including reducing the dose to gradually stop taking it. Ask your doctor for advice if your symptoms do not improve within this period.
If you have taken too many tablets or if e.g., a child has ingested the medicine by mistake, contact your doctor or nearest hospital casualty department immediately for advice.
Zopiclone overdosage together with certain agents or medicines which have a suppressive effect on the central nervous system might be life-threatening. This also includes alcohol.
Taking too much zopiclone may cause symptoms such as:
Do not take a double dose to make up for a forgotten dose.
If you still have time to sleep for 7 to 8 hours, you should take the dose immediately. If you do not have the opportunity for a full night's sleep, skip the missed dose and do not take a new dose until you go to bed next night.
Do not suddenly stop taking this medicine. If you want to stop taking this medicine, discuss this with your prescriber first. They will tell you how to do this, usually by reducing the dose gradually so that any unpleasant withdrawal effects are kept to a minimum. This may occur over a period of weeks to months. Your prescriber will ensure that your plan for stopping treatment is tailored to you and can be adapted according to your needs and experience of any withdrawal symptoms.
Withdrawal symptoms such as:
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Stop using Zopiclone Grindeks and contact a doctor or go to your nearest emergency department immediately if you experience any of the following symptoms (very rare, may affect up to 1 in 10,000 people):
Other side effects
Common (may affect up to 1 in 10 people):
Uncommon (may affect up to 1 in 100 people):
Rare (may affect up to 1 in 1,000 people):
Very Rare (may affect up to 1 in 10,000 people):
Not known (frequency cannot be estimated from available data)
Drug Withdrawal
When you stop taking Zopiclone Grindeks, you may experience drug withdrawal symptoms, which include: feeling anxious, shaky, irritable, agitated, confused, having panic attacks, sweating, headache, faster heartbeat or uneven heartbeat (palpitations), lower level of awareness or problems with focussing or concentrating, nightmares, seeing of hearing things that are not real (hallucinations), being more sensitive to light, noise and touch than normal, relaxed grip on reality, numbness and tingling in your hands and feet, aching muscles, stomach problems.
How do I know if I am tolerant or addicted?
If you notice any of the following signs whilst taking Zopiclone Grindeks, it could be a sign that you have become addicted.
If you notice any of these signs, it is important you talk to your prescriber.
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via Yellow Card Scheme at www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the carton after “EXP”. The expiry date refers to the last day of that month.
This medicinal product does not require any special storage conditions.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help to protect the environment.
The active substance in Zopiclone Grindeks is zopiclone. Each tablet contains 3.75 mg, 5 mg or 7.5 mg zopiclone, respectively.
The other ingredients are:
Tablet core: maize starch, hypromellose (type 2910) (E464), calcium hydrogen phosphate (E341), sodium starch glycolate (type A), cellulose, microcrystalline (E460), magnesium stearate (E572).
Tablet film-coating
5 mg tablets:
Macrogol poly(vinyl alcohol) grafted copolymer (E1209); talc (E553b); titanium dioxide (E171); glycerol monocaprylocaprate (E471); poly(vinyl alcohol) (E1203); indigo carmine (E132); cochineal red A (E124); quinoline yellow (E104).
3.75 mg and 7.5 mg tablets:
Macrogol poly(vinyl alcohol) grafted copolymer (E1209); talc (E553b); titanium dioxide (E171); glycerol monocaprylocaprate (E471); poly(vinyl alcohol) (E1203).
Zopiclone Grindeks 3.75 mg are white round biconvex film-coated tablets with plain surfaces; size of tablet is approximately 5 mm in diameter.
Zopiclone Grindeks 5 mg are blue round biconvex film-coated tablets with plain surfaces; size of tablet is approximately 6 mm in diameter.
Zopiclone Grindeks 7.5 mg are white round film-coated tablets, convex on one side and dimple with break-line on other with plain surfaces; size of tablet is approximately 7 mm in diameter. Tablet can be divided in equal doses.
Zopiclone Grindeks is available in PVC/PVDC//Alu blisters containing 10, 20, 30 or 100 film-coated tablets.
Not all pack sizes may be marketed.
This leaflet was last revised in November 2025
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