Difference?

I am sick with a cold.

Right now, I am taking Sudafed PE because that's what Anne had when I found that there was no Sudafed in my house. Normally, I would take the 12-hour tablets, because there is no reason to only take the stuff for 4-6 hours at a time. But I am clearly out of them.

Has anyone used both original pseudoephedrine and the new PE stuff for the same cold? How do they compare? I think that the real, original stuff probably works better, but its hard to tell with 4-hour doses.