The MHRA has issued a patient-level product recall after a batch of 8/500mg co-codamol tablets were found to contain blisters of the higher strength 30/500mg tablets.

Batch LL11701, manufactured by Wockhardt UK, is labelled as 8/500mg tablets but some packs contain rogue 30/500mg blisters. The rogue blister packs can be identified by checking their markings: 8mg/500mg tablets are marked on one side only as "", while the higher strength blisters are marked on one side as "CCD30" and marked as "CP" on the reverse.

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	About 38,900 packs of the affected batch have been distributed to pharmacists and wholesalers for onward sale in the UK. Packs have an expiry date of September 2014 and were first distributed on December 30, 2011. All packs contain 32 tablets.

Pharmacists should quarantine affected packs and return them through the original supplier for credit, and contact patients where possible to ask them to return the medicines for identification.

Ian Holloway, MHRA head of the defective medicines report centre, said patients should be advised to return packs to pharmacies for a replacement. "If you think you have taken the wrong strength tablet, and in the unlikely event that you feel unwell, speak to your pharmacist or GP promptly," he added.