Why does antibiotics such as cephalexin will not work for colds, flu, or other viral infections?

Question

Found an old bottle of cephalexin prescribed to me and decided to research it out of boredom 🤷

In: 6

Answer 1

I think your first question has been well answered already.

For your second question… yes, antibiotics expire. The reason is that they lose potency over time, which makes them less effective. While there are studies that support the position that the loss of potency is quite small, good practice is to not use any expired prescriptions.