Boots said it identified a possible fault in the manufacturing process of the tamper seal which might result in small pieces of plastic getting into the solutions.
The Medicines and Healthcare products Regulatory Agency (MHRA) published the company-led recall for medicines purchased since September.
There is "currently no evidence" of any problems among people who have taken the medicines, MHRA said.
The medicines are:
Boots Pharmaceuticals Paracetamol 6 years Plus (250mg/5ml oral solution 200ml)
Boots Pharmaceuticals Ibuprofen 3 Months Plus (100mg/5ml oral suspension, strawberry flavour)
Boots Pharmaceuticals Chesty Cough Relief (100mg/5ml oral solution)
Boots Pharmaceuticals Dry Cough Relief oral solution
Boots Pharmaceuticals Mucus Cough Relief (100mg/5ml oral solution)
Shoppers are being asked to return the medicine to Boots as a precautionary measure, where they will get a refund.
Anyone with questions can telephone the Boots Customer Care Line on 0800 915 0004, or contact the healthcare team at their local Boots store.
"People should check their medicine cupboards at home and return these products to Boots if they have purchased them since September 2013. If people are worried or have any questions, they should speak to their pharmacist or GP."