Well, I just use the old standard White Cross or mini-thin, you can find them at truck stops, mini markets (at least here in FL). Another common one is "Double Action Ephedrine". Here in FL you can get 100 25mg tablets for $9.99. They will be called two-way or double action because of the two ingredients, Ephedrine HCL and guinafesin (an expectorant). Never had any side effects from the guinefesin, don't think there are any but YMMV.
Your common (ECA) ephedra stack (Stacker2, Yellow Swarm) was 25mg ephedra colloids made from the ma huang root, 200mg caffiene from green tea and 75 mg Acetylsalicylic Acid, which is the same as 1 ephedrine tablet, one no-doz or vivarin and one baby aspirin.