There's only a couple drugs I know by name to look for on package labels and pseudoephedrine is one of them. The other one is diphenhydramine (an antihistamine

There's only a couple drugs I know by name to look for on package labels and pseudoephedrine is one of them. The other one is diphenhydramine (an antihistamine i.e. Benadryl) because its common side effect of drowsiness means that its also one of the most common sleep aids. It has been more than once that myself or someone near me was having an allergic reaction and the 7/11 down the block didn't have any Benadryl but did have some sleep aid.