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Zopiclone 7.5 mg Tablets – patient leaflet, side effects, dosage

Last updated: · Text from the MHRA, as of · About this document

Medicine status: Prescription only (POM) Controlled drug (Schedule 4) Details

Medicine strength:
7.5 mg
Contains active substance:
ATC code:
Similar medicines:

Patient leaflet - Zopiclone 7.5 mg tablets

1. What Zopiclone is and what it is used for

This medicine has been prescribed for you for Short term treatment of insomnia in adults, including difficulties in falling asleep, nocturnal awakening and early awakening, transient, situational or chronic insomnia, and insomnia secondary to psychiatric disturbances, in situations where the insomnia is debilitating or is causing severe distress for the patient. Long term continuous use is not recommended. A course of treatment should employ the lowest effective dose.

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.

The name of your medicine is either Zopiclone 3.75 mg tablets or Zopiclone 7.5 mg tablets. For easy reference both will be called Zopiclone in this leaflet. Zopiclone tablets contains a medicine called zopiclone. This belongs to a group of medicines called hypnotics. It works by acting on your brain to help you sleep.

Zopiclone is used to treat sleep problems in adults such as:

  • Difficulty falling asleep.
  • Waking in the middle of the night.
  • Waking too early.
  • Severe or upsetting sleep problems that are caused by your mood or mental health problems.

Do not take Zopiclone as long-term treatment. Treatment should be as short as possible, because the risk of dependence increases with the duration of treatment. Ask your doctor for advice if you are unsure.

2. What you need to know before you use Zopiclone

Do not use Zopiclone and tell your doctor if:

  • You are allergic to zopiclone or any of the other ingredients of Zopiclone tablets (listed in Section 6 below)

    Signs of an allergic reaction include: a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue

  • You have a problem that causes severe muscle weakness (myasthenia gravis)
  • Your lungs do not work properly (respiratory failure)
  • You have a problem where you stop breathing for short periods at night (sleep apnoea)
  • You have severe liver problems
  • You are under the age of 18. The safety and efficacy of Zopiclone in children and adolescents aged less than 18 years have not been established
  • You have ever experienced sleepwalking or other unusual behavior (such as driving, eating, making a phone call or having sex etc.) while not being fully awake after taking Zopiclone.

Do not take this medicine if any of the above applies to you. If you are not sure, talk to your doctor or pharmacist before taking Zopiclone.

Warnings and precautions

Talk to your doctor or pharmacist before taking Zopiclone if:

  • You have any liver problems (see also ‘Do not take Zopiclone if:’) Your doctor may need to give you a lower dose of Zopiclone
  • You have any kidney problems. Your doctor may need to give you a lower dose of Zopiclone
  • You suffer from mild breathing problems; your doctor will decide if you should receive Zopiclone (see also ‘Do not take Zopiclone if:’)
  • You have ever had a mental disorder (including depression and personality disorder) or have abused or have been dependent on alcohol or drugs
  • You have recently taken Zopiclone or other similar medicines for more than four weeks.
  • Are or have ever been addicted to opioids, alcohol, prescription medicines, or illegal drugs, or if you have ever had a history of struggling to control your alcohol or drug intake.
  • Have previously suffered from withdrawal symptoms such as agitation, anxiety, shaking or sweating, when you have stopped taking alcohol or drugs.
  • Feel you need to take more of Zopiclone Tablets to get the same level of symptom control, this may mean you are developing tolerance to the effects of this medicine or are becoming addicted to it. Speak to your prescriber who will discuss your treatment and may change your dose or switch you to an alternative medication.

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:

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.

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.

Risk of abuse and dependence

Use of Zopiclone may lead to the development of abuse and/or physical and psychological dependence. The risk of dependence increases with dose and duration of treatment and is greater when Zopiclone is used for longer than 4 weeks, and in patients with a history of mental disorders and/or alcohol, illicit substance or drug abuse.

Zopiclone and mental health

Some people being treated with Zopiclone can experience mental health problems such as irrational thoughts (delusions),seeing or hearing things that are not there (hallucinations), feeling confused or disorientated (delirium), feeling angry,irritable, restless or depressed.

.

Additionally, some studies have shown an increased risk of suicidal ideation, suicide attempt and suicide in patients taking certain sedatives and hypnotics, including this medicine. However, it has not been established whether this is caused by the medicine or if there may be other reasons. If you have suicidal thoughts, contact your doctor as soon as possible for further medical advice.

Zopiclone and unusual behaviour

Before taking Zopiclone, it is important to make sure that you can have at least 7 to 8 hours of uninterrupted sleep to help reduce the risk of some side effects (see section 4 – Possible side effects).

Zopiclone may cause sleepwalking or other unusual behaviour (such as driving, eating, making a phone call, or having sex etc.) while not being fully awake. The next morning, you may not remember that you did anything during the night. These activities may occur whether or not you drink alcohol or take other medicines that make you drowsy with Zopiclone. If you experience any of the above, stop the treatment with Zopiclone immediately and contact your doctor or healthcare provider.

If you are not sure if any of the above applies to you, talk to your doctor or pharmacist before taking Zopiclone.

Other medicines and Zopiclone

Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines. This includes medicines you buy without a prescription, including herbal medicines.

This is because Zopiclone can affect the way some other medicines work. Also, some medicines can affect the way Zopiclone works.

Tell your doctor if you are taking any of the following medicines. Zopiclone may increase the effect of the following medicines:

  • Medicines for mental problems (antipsychotics)
  • Medicines for depression
  • Medicines for epilepsy (anticonvulsants)
  • Medicines used in surgery (anaesthetics)
  • Medicines to calm or reduce anxiety or for sleep problems (hypnotics)
  • Medicines for hay fever, rashes or other allergies that can make you sleepy (sedative antihistamines) such as chlorphenamine or promethazine
  • Some medicines for moderate to severe pain (narcotic analgesics) such as codeine, methadone, morphine, oxycodone, pethidine or tramadol.

The following medicines can increase the chance of you getting side effects when taken with Zopiclone. To make this less likely, your doctor may decide to lower your dose of Zopiclone:

  • Some antibiotics such as clarithromycin or erythromycin
  • Some medicines for fungal infections such as ketaconazole and itraconazole
  • Ritonavir (a protease inhibitor) - for HIV infections
  • Concomitant use of Zopiclone and opioids increases the risk of drowsiness, difficulties breathing, coma and death. Zopiclone and opioids should only be used concomitantly, whenother treatment options are inadequate. Please tell your doctor about all opioid medicines youare taking and Follow your doctor’s dosage recommendations closely.

The following medicines can make Zopiclone work less well:

  • Some medicines for epilepsy such as carbamazepine, phenobarbital or phenytoin
  • Rifampicin (an antibiotic) - for infections
  • St John’s Wort (a herbal medicine) - for mood swings and depression.

Taking Zopiclone with food, drink and alcohol

  • Do not drink alcohol while you are taking Zopiclone. Alcohol can increase the effects of Zopiclone and make you sleep very deeply so that you do not breathe properly or have difficulty waking.

Pregnancy, breast-feeding and fertility

Pregnancy

Use of Zopiclone is not recommended during pregnancy. If you are pregnant, think you may be pregnant or are planning to have a baby, ask your doctor for advice.

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 (sometimes called “harelip”) in the newborn baby.

Reduced fetal movement and fetal heart rate variability may occur after taking Zopiclone during the second and/or third trimester of pregnancy.

If Zopiclone 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

Do not take Zopiclone if you are breast-feeding or planning to breast-feed.

This is because small amounts may pass into mother’s milk.

If you are breast-feeding or planning to breast-feed, talk to your doctor or pharmacist before taking any medicine.

Ask your doctor or pharmacist for advice before taking any medicine if you are pregnant or breast-feeding.

Driving and using machines

Like other medicines used for sleep problems, Zopiclone can cause slowing of your normal brain function (central nervous system depression). The risk of psychomotor impairment including driving ability, is increased if:

  • You take Zopiclone within 12 hours of performing activities that require mental alertness
  • You take higher than the recommended dose of Zopiclone
  • You take Zopiclone while already taking another central nervous system depressant or another medicine that increases levels of Zopiclone in your blood, or while drinking alcohol.

Do not engage in hazardous activities requiring complete mental alertness such as driving or operating a machinery after taking Zopiclone and in particular during the 12 hours after taking your medicine. For more information about possible side effects which could affect your driving see section 4 of this leaflet.

Important information about some of the ingredients of Zopiclone

Zopiclone tablet contains:-

  • Lactose. This is a type of sugar. If you have been told by your doctor that you cannot tolerate some sugars (have an intolerance to some sugars), talk to your doctor before taking this medicine.

3. How to take Zopiclone

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.

Treatment should be as short as possible and should not exceed four weeks including period of tapering off. Your doctor will give you the lowest effective dose.

Always take Zopiclone exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.

Taking this medicine

  • Take this medicine by mouth.
  • Swallow the tablet with a drink of water.
  • Do not crush or chew your tablets.
  • Take just before bedtime in a single intake and do not take again during the same night
  • The usual length of treatment is 2 days to 3 weeks.

Adults

The usual dose is one Zopiclone tablet (7.5 mg) just before bedtime.

Elderly

The usual starting dose is one Zopiclone tablet (3.75 mg) just before bedtime. Your doctor may decide to increase your dose to one Zopiclone tablet (7.5 mg) if needed.

Use in children and adolescents

Zopiclone should not be used in children and adolescents less than 18 years.

The safety and efficacy of Zopiclone in children and adolescents aged less than 18 years have not been established.

Patients with liver, respiratory or kidney problems

The usual starting dose is one Zopiclone tablet (3.75 mg) just before bedtime.

Blood Tests

  • Zopiclone can change the levels of liver enzymes shown up in blood tests. This can mean that your liver is not working properly.
  • If you are going to have a blood test, it is important to tell your doctor that you are taking Zopiclone.

If you take more Zopiclone than you should

If you take more Zopiclone than you should, tell a doctor or go to a hospital casualty department straight away. Take the medicine pack with you. This is so the doctor knows what you have taken.

Taking too much Zopiclone can be very dangerous. The following effects may happen:-

  • Feeling drowsy, confused, sleeping deeply and possibly falling in to a coma.
  • Floppy muscles (hypotonia).
  • Feeling dizzy, light headed or faint. These effects are due to low blood pressure.
  • Falling over or losing your balance (ataxia).
  • Shallow breathing or difficulty breathing (respiratory depression).

If you forget to take Zopiclone

Zopiclone must only be taken at bedtime. If you forget to take your tablet at bedtime, then you should not take it at any other time, otherwise you may feel drowsy, dizzy and confused during the day.

Do not take a double dose to make up for a forgotten tablet.

If you stop taking Zopiclone

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 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.

Keep taking Zopiclone until your doctor tells you to stop. Do not stop taking Zopiclone suddenly, but tell your doctor if you want to stop. Your doctor will need to lower your dose and stop your tablets over a period of time.

If you stop taking Zopiclone suddenly, your sleep problems may come back and you may get a ‘withdrawal effect’. If this happens you may get some of the effects listed below.

See a doctor straight away if you get any of the following effects:

  • Feeling anxious, shaky, irritable, agitated, confused or having panic attacks
  • Sweating
  • Headache
  • Faster heartbeat or uneven heartbeat (palpitations)
  • A lower level of awareness and problems with focusing or concentrating
  • Nightmares, seeing or 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.

In rare cases fits (seizures) may also occur.

If you have any further questions on the use of the medicine, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, Zopiclone can cause side effects, although not everybody gets them.

Drug Withdrawal

When you stop taking Zopiclone, 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.

Stop taking Zopiclone and see a doctor or go to a hospital straight away if:-

  • You have an allergic reaction. The signs may include: a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue.

Tell your doctor as soon as possible if you have any of the following side effects:-

Rare (may affect up to 1 in 1,000 people)

  • Poor memory since taking Zopiclone (amnesia). By having 7-8 hours of uninterrupted sleep after taking Zopiclone, this is less likely to cause you a problem
  • Seeing or hearing things that are not real (hallucinations)
  • Falling, especially in the elderly.

Not known (frequency cannot be estimated from available data)

  • Thinking things that are not true (delusions)
  • Feeling low or sad (depressed mood).

Tell your doctor or pharmacist if any of the following side effects get serious or lasts longer than a few days:-

Common (may affect up to 1 in 10 people)

  • A mild bitter or metallic taste in your mouth or a dry mouth
  • Feeling drowsy or sleepy

Uncommon (may affect up to 1 in 100 people)

  • Feeling sick (nausea) or being sick (vomiting)
  • Feeling dizzy or sleepy
  • Headache
  • Nightmares
  • Feeling physically or mentally tired
  • Agitation.

Rare (may affect up to 1 in 1,000 people)

  • Feeling confused
  • Itchy, lumpy rash (urticaria)
  • Feeling irritable or aggressive
  • Reduced sex drive
  • Difficulty breathing or being short of breath.

Not known (frequency cannot be estimated from available data)

  • Feeling restless or angry
  • Feeling light headed or having problems with your coordination
  • Double vision
  • Moving unsteadily or staggering
  • Muscular weakness
  • Indigestion
  • Becoming dependent on Zopiclone
  • Slower breathing (respiratory depression)
  • Unusual skin sensations such as numbness, tingling, pricking, burning or creeping on the skin (paraesthesia)
  • Mental problems such as poor memory
  • Difficulty paying attention
  • Disrupted normal speech
  • Zopiclone may cause sleepwalking or other unusual behavior (such as driving, eating, making a phone call, or having sex etc.) while not being fully awake.
  • Delirium (a sudden and severe change in mental state that can cause a combination of confusion, disorientation and/or attention deficit)
  • Dependence and addiction (see section “How do I know if I am tolerant or addicted?”).

How do I know if I am tolerant or addicted?

If you notice any of the following signs whilst taking Zopiclone Tablets it could be a sign that you have become addicted.

  • You may feel the need to keep taking the medication for longer than your doctor recommended
  • You feel you need to use more than the recommended dose - You are using the medicine for reasons other than prescribed
  • When you stop taking the medicine you feel unwell, and you feel better once taking the medicine again

If you notice any of these signs, it is important you talk to your prescriber.

Reporting of side effects

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 the 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.

5. How to store Zopiclone

Keep this medicine out of the sight and reach of children.

Do not use Zopiclone after the expiry date which is stated on the carton after EXP. The expiry date refers to the last day of that month.

Store below 30ºC. Keep the blister in the outer carton in order to protect from light and moisture.

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 protect the environment.

6. Contents of the pack and other information

What Zopiclone contains

The active substance is zopiclone.

The other ingredients (excipients) are lactose monohydrate, calcium hydrogen phosphate dihydrate, maize starch, starch pregelatinized, magnesium stearate, hypromellose, titanium dioxide, macrogol 400, purified water.

What Zopiclone looks like and contents of the pack

Zopiclone 3.75 mg Tablets: White to off white, round, biconvex film-coated tablets with diameter of 5.95 mm to 6.25 mm.

Zopiclone 7.5 mg Tablets: White to off white, oval, biconvex film-coated tablet with breakline on one side, with dimensions, length: 9.95 mm to 10.25 mm, width: 4.95 mm to 5.25 mm.

White opaque PVC – aluminium blisters of 7, 10, 14, 28 and 30 tablets are available.

Not all pack sizes may be marketed.

Marketing Authorisation Holder

Morningside Healthcare Ltd.

Unit C, Harcourt Way, Leicester, LE19 1WP, UK

Manufacturer

Morningside Pharmaceuticals Ltd.

5 Pavilion Way, Loughborough, LE11 5GW, UK

This leaflet was last revised in November 2025.

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 20117/0269

Last revision stated in the text: November 2025 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Zopiclone 7.5 mg tablets

Prescription needed? Yes, prescription-only medicine (POM)
Controlled drug
Yes, Schedule 4 of the Misuse of Drugs Regulations?
  • Controlled drugs are medicines that UK law controls more strictly because they can be misused or cause dependence. The Misuse of Drugs Regulations 2001 divide them into 5 schedules: schedule 1 has the strictest rules, schedule 5 the lightest.
  • Schedule 4 has lighter rules. Its part I covers benzodiazepines and similar sleeping tablets, for example diazepam or zopiclone.
  • A prescription is valid for 28 days and usually covers up to 30 days of treatment.
  • Travelling abroad: you can usually carry up to 3 months' supply. Take your prescription or a letter from your doctor to show it is yours, and check the rules of the country you are going to (GOV.UK).
  • Never give it to anyone else.
Active substance Zopiclone
Strength 7.5 mg
Pharmaceutical form Oral tablet
The tablet can be divided into equal doses.
How is it taken Oral
Excipients Calcium hydrogen phosphate dihydrate,, lactose monohydrate,, maize starch,, starch, pregelatinised,, croscarmellose sodium,, silica, colloidal anhydrous,, magnesium stearate., Hypromellose,, titanium dioxide (E171).
Pack sizes 28 tablet
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 3 years.
Storage Do not store above 25 °C. Store in the original container.
Drug group (ATC) Hypnotics and sedatives; Benzodiazepine related drugs
  1. N Nervous system drugs
    1. N05 Psycholeptics
      1. N05C Hypnotics and sedatives
        1. N05CF Benzodiazepine related hypnotics and sedatives
          1. N05CF01 zopiclone
Marketing authorisation PL 00289/2549 (first authorised 27 November 2000), PL 20117/0269 (first authorised 31 January 2025)
Marketing authorisation holder Teva UK Limited, Morningside Healthcare Ltd
Codes GTIN 5017007604877 · BNF 04010100

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.2.0 of 19 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.