Ketotifen shelf life?

Well, I'm on my third week of clen starting today and my roomate had some "oldish" keto in the fridge still. I was going to use benadryl, but didn't want to risk it not working.

What's the expiration of keto?

It still looked normal and tasted the same (like shit).

The keto is probably still good especially if it was in the fridge the whole time.

I think the research chems are good for about a year. How old is it? Should probably still work.

try it tonight. If you get drowsy then you are all good.