Can you use expired theraflu powder?

It is not recommended to use expired theraflu powder.

Expired medications may not be as effective and could potentially cause harm. The active ingredients in theraflu powder can break down over time, reducing their effectiveness. Additionally, the inactive ingredients in theraflu powder can also change over time, potentially causing side effects.

For your safety, it is best to discard any expired theraflu powder and purchase a new one.