Any water treatment professional is familiar with the many health risks related to consuming unpurified water. What many people, even in the water industry, do not yet know is that tap water can interfere with the medications doctors prescribe.
Many prescription vials carry small brightly colored stickers that say “Take on an empty stomach” or “Do not take with dairy products or antacids.” The pharmacist places these stickers on the vial because the components of food, milk or antacids will inhibit the absorption of the medicine and render it partially or totally inactive. These same components are found in tap water and can render some medication inactive. Antibiotics, specifically tetracycline, norflaxin and ciprofloxacin can be affected in this way.