[brityank]

Take a look at the molecular make-up of the compound; you will find close to it the mole weight or molecular weight of the compound in micrograms. Tell me what they each say.

I have the same one from Warrick someplace, and one from ProAir^©HFA. I know they are different, and my Doc is chasing it back through his med center contacts. He agrees, it is different.

[r9etb]

Proventil is albuterol sulfate, empirical formula is (C₁₃H₂₁NO₃)₂·H₂SO₄.

Warrick is albuterol. The empirical formula is C₁₃H₂₁NO₃.

The sulfate is not counted against the base dosage of 90 mcg.