Blue And White Capsules With Chinese Writing

Wife Says:

I found blue and white capsules with Chinese writing on it. It has 2 sideway Vs on it almost like a greater/less than symbol (on blue side) on white side is Chinese symbols in blue writing. They are in pop out silver backing individualized. They are Lizone? (I think a Chinese pharmacy) and say OTC on package. No way for me to identify. Found them in my husbands backpack after returning from a trip. Any hints?