General Anaesthetic (inhaled)
Last reviewed July 2026
Who is this for?
Isoflurane is a general anaesthetic, a liquid that is turned into a gas for you to breathe in during surgery so you fall into a deep, painless sleep and do not feel anything during the operation.
Enhances inhibitory neurotransmission by potentiating GABA-A receptors and blocking NMDA glutamate receptors in the central nervous system, producing unconsciousness and analgesia.
General anaesthesia for surgery (to make you sleep deeply and feel no pain during an operation)
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
This does not apply. Isoflurane is only given during surgery by a doctor, so there is no chance of missing a dose at home.
This drug is only used in hospitals, not something you can buy from a pharmacy or roadside seller for home use. Always tell your anaesthetist about every medicine, herbal remedy, or supplement you are taking before surgery. If you notice yellowing of the eyes or skin, dark urine, or severe tiredness in the days after surgery, go back to the hospital immediately.
Muscle relaxant drugs used during surgery: isoflurane makes them stronger, so the anaesthetist adjusts the dose. Other sedatives or strong painkillers like morphine increase sleepiness and slow breathing. Alcohol: if you drink heavily before surgery, it can change how your body responds to this anaesthetic, so always tell your doctor about your drinking habits.
Check your specific combination
Is it safe to take Isoflurane with your other drugs?
Isoflurane should only be used during pregnancy or in breastfeeding mothers if the doctor decides the surgery is absolutely necessary and the benefit outweighs the risk; always inform your doctor if you are pregnant or breastfeeding.
Store in a tightly closed bottle at room temperature, away from direct sunlight and extreme heat. Keep far away from open flames or sparks because the vapour can be flammable. Keep out of the reach of children at all times. This drug is normally stored and handled only in hospitals.
For information only: not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under, especially in Nigerian and West African pharmacies
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Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.