MedicinecontrolledEssential

Clonazepam

A benzodiazepine for epileptic seizures, muscle spasms and panic disorder.

Clinical information

Common uses

epileptic seizures
involuntary muscle spasms
panic disorder
restless legs syndrome

Common side effects

daytime sleepiness
disturbed sleep and vivid dreams
feeling light-headed, unsteady or dizzy
muscle weakness

Cautions

can be addictive if taken beyond 2 to 4 weeks
do not stop suddenly — withdrawal effects
do not drink alcohol — dangerously deep sleep
tell your doctor about breathing, liver or kidney problems

Interactions

strong painkillers (codeine, morphine, methadone)
antidepressants and antipsychotics
sedating antihistamines (chlorphenamine, promethazine)
other epilepsy medicines
rifampicin and antifungals like fluconazole
valerian or passionflower herbal remedies

Pregnancy: can be taken if needed, especially for epilepsy — baby monitored

Reference information, not medical advice — always follow your doctor or pharmacist. Source: NHS Medicines A–Z, nhs.uk/medicines/clonazepam (accessed 2026-08-16)

Approved brands & formulations7

Brand name	Dosage form	Strength	Importer	Category
Clonazepam	Tablet	0.5mg	MFDA designated importers with Pre Authorization approval before import	controlled
Clonazepam	Tablet	2 mg	MFDA designated importers with Pre Authorization approval before import	controlled
Clonazepam	Tablet	0.125mg	MFDA designated importers with Pre Authorization approval before import	controlled
Clonazepam	Tablet	0.25 mg	MFDA designated importers with Pre Authorization approval before import	controlled
Rivopam Tablet 0.5mg	Tablet	0.5mg	—	controlled
Rivopam Tablet 2mg	Tablet	2mg	—	controlled
Zapiz	Tablet	0.25 mg	authorized medicine importers	controlled