How It Works
Clonazepam works by enhancing the activity of a natural brain chemical called gamma-aminobutyric acid (GABA).
GABA slows down nerve activity, which helps reduce over-excitation in the brain — that’s what causes seizures, anxiety, and panic.
The result is a more balanced, settled state that can lessen feelings of agitation, muscle tension, or restlessness.
General Use and Effects
Doctors prescribe Rivotril for:
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Various forms of epilepsy and seizure disorders (including myoclonic and absence seizures)
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Panic attacks and acute anxiety
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Occasionally for muscle spasms or movement disorders
It’s classed as a long-acting benzodiazepine, meaning its calming effects can last between 6 and 12 hours depending on the dose and the person taking it.
Some people report feeling noticeably relaxed or sleepy not long after their dose, so timing is important.
Dosage and How It’s Taken
Rivotril should only ever be taken exactly as prescribed.
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Doses for adults usually start low (for example, 0.5 mg to 1 mg daily) and are gradually increased if needed.
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The 2 mg tablet is typically used once the correct maintenance dose is established.
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Tablets are swallowed whole with a drink of water, with or without food.
Never increase or stop your dose suddenly. Stopping abruptly can cause withdrawal symptoms, especially if taken for a long period — it should always be tapered off under medical advice.
Possible Side Effects
Like all benzodiazepines, clonazepam can cause side effects, particularly at the start of treatment.
Common ones include:
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Drowsiness or tiredness
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Dizziness or slowed reaction time
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Poor coordination or unsteady movements
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Memory or concentration problems
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Muscle weakness
Less common but serious reactions include confusion, depression, breathing difficulty, or allergic reactions (rash, swelling, difficulty breathing).
If any severe side effects occur, seek medical attention straight away.
Precautions and Who Should Avoid It
Clonazepam may not be suitable for everyone. Tell your doctor if you:
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Have breathing problems, such as sleep apnoea or COPD
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Have liver disease, kidney problems, or muscle weakness (myasthenia gravis)
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Have a history of drug or alcohol dependence
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Are pregnant or breastfeeding
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Need to drive or operate machinery — it can impair alertness
Avoid alcohol completely while taking Rivotril. The combination can dangerously intensify drowsiness and slow breathing.
Legal and Safety Information (UK)
Clonazepam is a Prescription-Only Medicine (POM) and a Class C controlled drug under the Misuse of Drugs Act 1971, listed as a Schedule 4 Part I substance.
It is only available through a valid prescription issued by a qualified prescriber.
Possession or supply without prescription is illegal in the UK.
Always obtain medicines through a registered UK pharmacy — unregulated versions sold online may be counterfeit or unsafe.
Storage
Keep tablets in their original packaging, below 25 °C and away from moisture or sunlight.
Store securely out of reach of children.
Return any unused or expired tablets to a pharmacy for safe disposal.
Summary
Rivotril (Clonazepam) 2 mg by Galenika is a long-acting benzodiazepine used for managing seizures, panic disorders, and short-term anxiety relief.
It works by calming overactive brain signals to bring stability and relaxation.
When used responsibly and under medical supervision, it’s highly effective — but like all strong medicines, it should be taken with care and never without a doctor’s guidance.

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