Phenedol is a brand name for a medication that combines phenylephrine and paracetamol (acetaminophen) to relieve symptoms of colds and flu, such as nasal congestion and pain or fever. Phenylephrine acts as a decongestant, while paracetamol provides analgesic and antipyretic effects. It is commonly used in over-the-counter cold and flu remedies. As with any medication, it's important to follow dosage instructions and consult with a healthcare provider if you have any concerns.