My daughters pediatrician recommended 1tsp dimatapp cold and cough for my14monthold..is that the right dose? she is almost 27lbs

Check again with ped: You should ask your pediatrician again the dosages for children less than 6 years old are not listed. So can't give you the recommended dosage.

The American Academy: of Pediatrics' position is that cold medicines are not effective for children < 6 & their use & misuse can cause serious adverse side effects. The FDA's public health advisory of Jan. 2008 states children < 2 should not be given cold medications because of serious & life-threatening side-effects. http://www.aap.org/en-us/professional-resources/practice-support/Pages/Withdrawal-of-Cold-Medicines

Okay: Dimetapp is unlikely to do much and most of us do not recommend any of these combination meds for kids with colds/congestion. That said, dimetapp has been around since the late 70's (at a higher concentration) where it was used routinely as a prescription med. This dose of the present formulation is not unusual for a 27 lb kid.I personally prefer it over vapo-rubs and other such treatments.