Same. Have asthma, use albuterol. No effect. But since that drug can speed up your heart rate, I try not to use it when on stimulants. I get tachycardia for absolutely no reason, no need to tempt fate.
It might be able to temporarily diminish some of the perceived anxiolytic qualities of benzos due to the potential anxiogenic effect that drugs like albuterol can have. I don't have asthma but have taken albuterol on occasion and inhaling too many puffs can make one feel pretty uneasy. Thus, i guess its plausible that low doses might have subtle anxiogenic effects that could subtly detract from the anxiolysis of an anxiolytic drug.