Bidex DM ForumsRecently active Bidex DM forums and community discussion threads. Post your question or story about Bidex DM and connect with others who have experience with the same medications. No registration is required and your identity remains anonymous.
This is a white pill, oblong shaped. SJ 638 is imprinted into the pill. I believe it's used to treat sinus symptoms. The reason I want to know what it is, is because it works! for me at least. I got about 5 of them from my aunt last year, but she has no clue what they are now. I only have one left so I'm searching.... ## This tablet is called Bidex DM, and contains 30 mg Dextromethorphan + 800 mg Guaifenesin.1 REPLY Updated