Generic Lysol problem

I wanted to warn everyone with varnished/stained hard wood surfaces that watch out for the generic Lysol Walmart sells under the label "Great Value". I bought a can of it cause it was less than half the cost of regular Lysol and yesterday my wife started using it and immediately noticed anywhere she sprayed light switches any over spray that hit the wood work immediately took the varnish off. We don't have a mansion by any stretch of the imagination but it's a pretty neat 103 yr old house with a lot of nice original woodwork. Luckily she noticed what was happening right away and we only have 2 spots that it ruined. We've been sanitizing with name brand Lysol for yrs. and never had that problem