Generic drug name (Brand name)

Calmylin Ace

Active Ingredient: guaifenesin + codeine phosphate + pheniramine maleate

Drug Class: Cough/Cold

Calmylin Ace is a non-preferred generic drug on the Reformulary.  Tell me why

There are alternatives that work just as well and could cost you less.

Calmylin Ace is used
to treat symptoms of a cold or cough