Quick Answer: Since 2014, the recommended starting dose of zopiclone in Canada is 3.75 mg (half a 7.5 mg tablet), taken immediately before bed with 7 to 8 hours available for sleep. Seniors and people with liver or kidney impairment generally stay at lower doses, and courses are meant to run 7 to 10 days, per Health Canada.
Zopiclone dosage in Canada follows rules that changed in 2014 and that many long-time users have never heard. Zopiclone (Imovane and its generics) is dispensed as 5 mg and 7.5 mg tablets, but the recommended starting dose is now 3.75 mg, half of a scored 7.5 mg tablet, after Health Canada's review of next-day driving impairment. Mattress Miracle publishes this plain-language summary from the Canadian product monograph and the Health Canada dosage advisory because Brantford customers ask, and because dosage is where the official rules and everyday habits drift furthest apart. The only person who can set or change YOUR dose is your prescriber; this page exists so that conversation starts informed.
"Customers are routinely surprised by two things when zopiclone comes up at the counter: that the official starting dose is half the tablet most of them were started on years ago, and that the label course is measured in days, not years. I am not the person to change anyone's dose, that is the doctor's job. I just tell people what the documents say and to bring the question to their pharmacist, who can walk through it properly."
Brad Grose, founder, Mattress Miracle, family owned in Brantford since 1997, with 40+ years in the mattress industry
In This Guide
Reading Time: 6 minutes
What is the recommended zopiclone dose in Canada?
The recommended starting dose of zopiclone for Canadian adults is 3.75 mg, taken immediately before bedtime. If that proves insufficient and side effects allow, a prescriber may increase to 5 mg or 7.5 mg; the monograph frames 7.5 mg as the dose not to exceed. This is a 2014 change: before Health Canada's next-day impairment review, 7.5 mg was the common starting point, and driving-impairment data measurable 11 hours after that dose is what moved the recommendation down. The principle underneath is the one that governs every hypnotic: lowest effective dose, shortest effective time. What the tablets look like in practice: 5 mg and 7.5 mg strengths on Canadian shelves, with the 7.5 mg tablet scored for splitting to 3.75 mg.
Seniors, liver and kidney considerations
Zopiclone clears more slowly in older adults and in people with reduced liver or kidney function, which means the same tablet produces higher overnight and next-morning blood levels. The monograph accordingly keeps these groups at the low end, with 3.75 mg as the starting point and 5 mg as the ceiling in the populations it flags. For seniors the stakes are concrete: research links residual sedation from Z-drugs to falls and fractures, and the UBC Therapeutics Initiative review treats older adults as the group with the least favourable balance of benefit and harm. If a parent in your life has carried the same 7.5 mg prescription for years, the medication review at the pharmacy is overdue and free.
Why "lowest effective dose" is the whole game
Hypnotic side effects scale with dose: next-day impairment, memory effects and falls all climb as the dose does, while studies indicate the sleep benefit plateaus early. That asymmetry is why Health Canada moved the starting dose down rather than adding warnings to the higher one. Nothing on this page is medical advice, and no reader should split, raise, lower or stop a dose based on an article; that decision belongs to your prescriber with your chart in front of them.
Timing and duration: the rules people miss
Three timing rules from the label do a lot of quiet work. Take it immediately before bed, because it acts quickly. Only take it when you can give sleep a full 7 to 8 hours, because a short night guarantees you wake with the drug still working. And keep the course short: 7 to 10 consecutive days is the design, with anything past 2 to 3 weeks requiring full re-evaluation. There is no re-dosing in the middle of the night, ever; a 3 a.m. second tablet lands its peak in your morning commute. If early waking is the actual problem, say that to your prescriber, because it changes which tool fits, and see the behavioural approaches in our Insomnia Help hub that specifically target it.
The never-do list
Straight from the monograph, the combinations and moves the label rules out: alcohol with zopiclone, in any amount, on any night. Doubling up after a missed or "failed" dose. Driving or hazardous work before you know how your dose affects you the next day, and after 7.5 mg the measured window runs to 11 hours. Sharing tablets, particularly with anyone older or smaller than the person prescribed. And stopping abruptly after long nightly use, which invites rebound insomnia; the exit is a taper planned with your prescriber. For what the drug is and how it compares to alternatives, start at our zopiclone guide; for what it feels like and what can go wrong, the side effects guide goes deep.
The Brantford angle
Mattress Miracle is a family sleep store at 441 1/2 West Street, not a dispensary, and dosage questions get the same answer here every time: bring them to your pharmacist. What we add is the other half of the ledger: if your sleep needs a 7.5 mg dose to survive your mattress, the mattress is part of the dose. Customers from Brantford, Paris and St. George use our no-pressure fittings to find out; call (519) 770-0001 and we will tell you honestly whether the bed is working against you.
Frequently Asked Questions
Is 7.5 mg of zopiclone too much?
It is the maximum adult dose in the Canadian monograph, not the starting one. Health Canada's guidance since 2014 is to start at 3.75 mg and use the lowest dose that works. Whether 7.5 mg is right for you specifically is a prescriber's call.
Can I cut a zopiclone tablet in half?
The 7.5 mg tablet is scored precisely so it can deliver the 3.75 mg starting dose. Whether you should is between you and your prescriber; do not change your own dose based on an article, this one included.
What if I miss a dose?
Zopiclone is taken only at bedtime when needed; there is no catch-up dose. If you are awake at 3 a.m., taking it then breaks the 7-to-8-hour rule and hands you a medicated morning. Skip it and mention the pattern to your doctor.
How long does a zopiclone prescription last in Canada?
The label intends 7 to 10 consecutive days, re-evaluated past 2 to 3 weeks. Real prescriptions often run much longer, which is what current Canadian prescribing guidance is working to change. Long-term users should ask about a taper plan rather than stopping cold.
Visit Our Brantford Showroom
Mattress Miracle
441 1/2 West Street, Brantford
Phone: (519) 770-0001
Hours: Mon-Wed 10-6, Thu-Fri 10-7, Sat 10-5, Sun 12-4
The lowest effective dose gets a lot lower when the bed stops fighting you. Come try surfaces in person, no pressure, and keep the medication conversation where it belongs, with your pharmacist.
Related Reading
- Sublinox (zolpidem) in Canada: the other Z-drug
- Trazodone for sleep
- Sleep aids in Canada: the complete map
Sources
- Imovane (zopiclone) Product Monograph: pdf.hres.ca
- Health Canada, new dosage recommendations for zopiclone (2014): healthycanadians.gc.ca
- Health Canada Summary Safety Review SSR00048: dhpp.hpfb-dgpsa.ca
- UBC Therapeutics Initiative, Letter 158 (2025): ncbi.nlm.nih.gov