Site for what inert ingredients are put in pharma company meds

[cozynana]

I have many allergies and need to find a way to figure out what else is in the meds I take. My pharmacist is very busy and is inclined not to follow through calling the companies to see what the inerts are in the meds I take. I am celiac and have trouble with all other sugars and starches as well. Is there a site that has the phone numbers of the med companies or a site that lists the ingredients in meds each company makes?

[JaneV2.0]

Here's a resource for you:
http://www.medicine.virginia.edu/clinical/departments/medicine/divisions/digestive-health/nutrition-support-team/nutrition-articles/PlogstedArticle.pdf