Do viagra pills have an expiration date?

I have my viagra pills Since June 2019 it’s still good to use

Every medication will eventually expire and when they do, the efficacy can be compromised and/or the chemicals can be compromised. If you have the original packaging or bottle and there is no date on it there could be a bar code, SKU, or a number you can reference. If you have that, you can call the manufacturer or pharmaceutical company and they can tell you the expiration date. If they are only a year old for sure another thing is check the typical ‘shelf life’ is for Viagra. Some medications remain stable and usable for a very long time. That may be the case. It should be information you can get from the web, a call to the manufacturer, a Pharmisist. Hope they can still be used. Only a year old, they should be good.