Patients are being urged to check their Ventolin Accuhalers after a small number were found to not deliver the full number of doses of the drug.
Anyone with an inhaler from the faulty batches is being asked to return them to their pharmacist for a replacement.
The Medicines and Healthcare products Regulatory Agency (MHRA) said it was possible some patients would find their symptoms were not relieved as normal, in which case, they should seek medical advice.
Some Seretide Accuhalers are also being recalled from hospitals, pharmacies, dispensing practices, retailers and wholesalers in the UK for the same problem.
Bernadette Sinclair Jenkins, from the MHRA’s Inspections, Enforcement and Standards unit said: “We want patients and their families to be confident [that] treatment will be safe and effective when required.”
More information for patients or health professionals is available from GSK’s customer support team at email@example.com or on 0800 221 441.