So I OD’d on generic Robitussin today. I do not reccommend it in case you were thinking about doing that yourself. The Dr. told me to take 3X the dosage, so I did. He didn’t tell me that there were about 40 different kinds of this stuff…DM, CF, PE, PM…etc. I bought the wrong one and ended up ODing on some ingredient in that one that is not in the one that I was supposed to get. You’d think he would’ve told me which one to get.