The manufacture and sale of Nurofen Plus was halted in August, following reports of sabotage.
The Medicines and Healthcare products Regulatory Agency (MHRA) advised people to be extra vigilant following reports that the anti-psychotic drug, Seroquel XL 50mg, had been found within some Nurofen Plus packets.
However the issues have been resolved and the production and sale of Nurofen Plus has been resumed.
Dr Aomesh Bhatt, medical director for Nurofen Plus, said: ‘The safety of our customers is paramount. We want to assure customers that we have taken all possible steps to prevent any reoccurrence of the unacceptable tampering with our product.
'We are now resuming production and sales of Nurofen Plus with new tamper-evident packaging. We have informed the Medicines and Healthcare products Regulatory Agency (MHRA). Pharmacists can begin placing orders.’
The new packs of Nurofen Plus are individually cellophane wrapped in clear plastic. Additionally the packs will have new batch codes starting with two letters (NS) and followed by three digits e.g. NS123. The recalled stock has batch codes with two digits followed by two letters e.g. 13JJ.