Editing Lemsip (section)

==Side effects, contraindications, and interactions==
{{further|paracetamol|phenylephrine|guaifenesin}}
Possible side effects include [[hypersensitivity]], blood problems or, above the recommended dose, [[pancreatitis]] and [[vomiting]].<ref name="Lemsip Cold and Flu">{{cite web|url=http://www.nhs.uk/medicine-guides/pages/MedicineOverview.aspx?medicine=Lemsip%20Cold%20and%20Flu |title=Lemsip Cold and Flu - medicines and drugs - NHS Choices |publisher=Nhs.uk |date=2012-06-27 |accessdate=2014-05-11}}</ref>

Taking Lemsip alongside other medicine containing paracetamol can cause an [[overdose]], potentially resulting in serious [[liver damage|liver]] and [[kidney damage]].<ref name="Lemsip Cold and Flu Sachets" />

[[Phenylephrine]], which alongside paracetamol is one of Lemsip's two primary active ingredients and is intended to be responsible for most of the product's claimed effects, was discovered to be ineffective as a decongestant in 2015, leading some pharmacists to call for the ingredient to be banned.<ref name="New Scientist">{{cite web|url=https://www.newscientist.com/article/2089555-breaking-bad-sniffles-crystal-meth-made-cold-medicine-rubbish/ |title="Breaking bad sniffles: Crystal meth made cold medicine rubbish"|publisher=New Scientist |date=2016-05-23 |accessdate=2022-12-21}}</ref>