The more I think about it, the more I'm wondering how the prior policy could have been implemented effectively at all. Did someone need to produce a driver's license or other form of ID to buy it?
Pseudoephedrine?
According to this article, Nonprescription nicotine replacement therapy products cannot be sold legally to people younger than age 18. A doctor may prescribe one of these products if a person younger than 18 is dependent on nicotine.
http://www.webmd.com/smoking-cessation/nicotine-replacement-therapy-for-quitting-tobacco
I know that when I purchased nicotine patches at Target, I had to provide my drivers license. I think it is/was the same the the "morning after pill".