<<Disclaimer: Verify this information before applying it to your situation.>> I know I am going to have to submit and go to the doctor soon for a sinus infection. I am staying away because I am afraidof taking the antibiotics, not knowing if all those generic brands are gluten free. What procedures do those of you who are VERY careful about minute amounts of gluten go through when researching antibiotics? Do you do the research before heading into the office or after the RX is written? My concern is that the Dr writes a RX for a gf medication. Thanks for all of your help. I will summarize.