md,

I am glad you saved your medicine. Unless you are a suicide risk, it is better to keep old medicines for situations like that. Medications are good for years past their official expiry date.

By the way, I hope you did not mean "throw away" literally. You know not to throw away meds, don't you? They should be taken to a pharmacy for safe disposal. Not every pharmacy will accept unneeded meds. You need to ask around. I take mine to thr pharmacy in the basement of a large medical clinic. They have this special metal box, similar to a USPS mailbox, to receive unneeded meds bottles.

Injectables are a different story. There are more rules about disposing of injectables and used needles.