Eucalyptus oil
Eucalyptus oil is a decongestant oil found in 3 medicines sold in India, such as Vicks VapoRub, Iodex, Moov. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.
What it is used for
Helps ease a blocked nose when inhaled or rubbed on the chest.
How it works
The vapour of eucalyptus oil (mainly cineole) gives a feeling of a clearer nose and loosens mucus.
How to take it
Add a few drops to hot water for steam inhalation, or use rubs on the chest. Do not swallow.
Common side effects
- Skin irritation
- Coughing if the vapour is too strong
Get medical help straight away if
- Anyone swallows it (it is poisonous)
- Breathing trouble in a young child
Be careful
External use only; keep away from young children.
Other medicines and interactions
No important medicine interactions.
Pregnancy and breastfeeding
Use sparingly in pregnancy and breastfeeding. Not for use on or near the faces of babies and young children.
Combination medicines that contain Eucalyptus oil (3)
Common questions
What is Eucalyptus oil used for?
Helps ease a blocked nose when inhaled or rubbed on the chest.
How does Eucalyptus oil work?
The vapour of eucalyptus oil (mainly cineole) gives a feeling of a clearer nose and loosens mucus.
How should I take Eucalyptus oil?
Add a few drops to hot water for steam inhalation, or use rubs on the chest. Do not swallow.
What are the side effects of Eucalyptus oil?
Common: Skin irritation, coughing if the vapour is too strong. Get help straight away for: Anyone swallows it (it is poisonous), breathing trouble in a young child.
Does Eucalyptus oil interact with other medicines?
No important medicine interactions.
Is Eucalyptus oil safe in pregnancy and breastfeeding?
Use sparingly in pregnancy and breastfeeding. Not for use on or near the faces of babies and young children.
Does Eucalyptus oil need a prescription in India?
It is usually sold without a prescription in India, but ask a pharmacist if you take other medicines or have a long-term illness.
Which brands contain Eucalyptus oil?
Iodex, Moov, Vicks VapoRub.
Sources and further reading
- Eucalyptus oil: NHS · MedlinePlus
NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.
Last reviewed 31 October 2026. Written by Satya Babu from standard prescribing information.
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