There is a product out there, actually two, one is Primatene tablets which have ephedrine 12.5mg per tablet and there is an expectorant in there too. The one I use is Bronchaid tablets which have 25 mg ephedrine with 200 mg guifenacin per tablet. This medication is used to treat asthma. I use Bronchaid tablets to make an ECA stack and it works well. The expectorant won't really hurt you and I don't worry about it but some do.