This NHS content is written for people in England. Medicine names, availability, prescribing and services may differ in other countries.
Common side effects of salbutamol
More than 1 in 100 people have these side effects after taking 1 or 2 puffs of their salbutamol inhaler. There are things you can do to help cope with them:
Feeling shaky
See if your asthma or COPD symptoms get better with just 1 puff of your inhaler rather than 2. If you find you need 2 puffs for symptom relief, be reassured that the shakiness will wear off after a short time.
Faster heartbeat that gets better quickly
Make sure you're not taking more than the prescribed dose. If you get a faster heartbeat regularly, talk to your doctor or nurse as you may need your treatment reviewed so that you do not need to use your salbutamol as often.
Headaches
Make sure you rest and drink plenty of fluids. Do not drink too much alcohol. Ask your pharmacist to recommend a painkiller.
Talk to your doctor if the headaches do not go away or are severe.
These side effects should gradually improve as your body gets used to salbutamol. Speak to a doctor if the advice on how to cope does not help and a side effect still bothers you or does not go away.
View the original NHS website page ↗. Refreshed 19 August 2026.
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