I'm not familiar with the brand names of the decongestant/antihistamine
drugs mentioned for the congested mom, but if she has allergic rhinitis,
why not use intra-nasal steroids instead?  Serum levels are low to
non-existent, and they work well for many with pollen/mold/dust mite type
allergies.  Dr. Hale says pseudoephedrine is fine as a decongestant - I
recommend 30 mg every 6 hours or so.  If she is congested due to vaso-motor
rhinitis, a simple decongestant is better than combinations.
Antihistamines have many side effects - many are anti-cholinergic and can
lead urinary retention (in mother and baby), sedation or paradoxical
excitement, dry mouth,etc.

Julie Graves Moy, M.D., M.P.H.           [log in to unmask]
http://www.realtime.net/~jgmoy
512-397-9521 office
P.O. Box 4768                       512-342-1624  home
Austin, Texas  78765           512-342-1628 fax