Answer
In Nurofen Day & Night Cold & Flu tablets, ibuprofen inhibits prostaglandin synthesis to reduce inflammatory pain, swelling and fever, while phenylephrine stimulates postsynaptic alpha receptors, constricting blood vessels to reduce nasal swelling.
Sources for this answer
- Nurofen Day & Night Cold & Flu 200mg/5mg TabletsReckitt Benckiser Healthcare (UK) Ltd · emc · SmPC §5.1 Pharmacodynamic properties · Version 11Document updated
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