Where would you find information on drug interactions in an older-style drug monograph

In files about drug addictions is where i think I would find information on stuff like that

Cotton with iron probably

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.