Ok to give children's sudafed (cough/cold) to a 2.5yr-old if he's 40 lbs? child is very congested, dr not avail for consultation.

Sudafed: Because it contains Pseudoephedrine which may disrupt your child's sleep, use slt water nose drops with the sid of a bulb syringe to clear his nasal passages. Also use a vaporizer and elevate his mattress while sleeping. If need be you can use clartin, allegra, or zyrtec syrup, 1 tsp at bedtime and may be repeated 12 hours later, if necessary.