Medication: DayQuil Severe has the following ingredients: Acetaminophen, Dextromethorphan, Guiafensen, Phenylephrine. The first three should have no effect. The phenylephine is a sympathometic. It has some effect at stimulating Beta and alpha receptors. Propanolol is a Beta blocker, so might antagonize that. However, for a few days to get relief should not be significant issue
Answered 12/21/2019
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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