I would like any information on the following drugs and breastfeeding:

Serevent inhaler
Proventil
Aerobid

A pregnant mom wishes to breastfeed and take these drugs.  The pediatrician
does not think the Serevent is compatible.  I looked it up in Tom Hale's
fourth edition and it says there are no reports of use in lactating women,
but maternal plasma levels were very low.    Is there any new information on
this drug/

TIA
Chris Lundberg, Indianapolis IN