What is the difference of robitussin DM and promethazine DM?
I dont think you should take either while pregnant. They both have a bit of narcotics in them. I would suggest hot tea, warm saline mouth wash (gurggle, and swallow if you want), hard peppermint candies, and a saline nose spray. Also, being that you are preg, you may want to contact your doc about your ‘common’ cough and cold. While it very well could be nothing more than weather change issues, if you are sick, you probably need to know. Here are a couple links for you to look at http://www.drugs.com/mtm/robitussin-dm.h… http://www.drugdigest.org/DD/DVH/Uses/0,… The robitussin is dextromethorphan and guaifenesin The promethazine is phenegran and dextromethorphan The only thing that are the same is the dm……