To take the guesswork out of shopping for over-the-counter drugs ... and even eye drops. For example, antacids such as Tums can make many prescription drugs less effective. Before you try a ...

If you find yourself regularly relying on over-the-counter antacids, it's likely time to talk to your physician or health ...

According to people familiar with the matter, the list includes certain antipyretics (fever drugs), analgesics (painkillers), ...

Even some antacids - such as Alka-Seltzer -- contain ... Don't forget to mention over-the-counter medicines, herbal remedies, and vitamins. "Bring a list of all the medicines and supplements ...