For example, some OTC medications may be gluten-free or sugar ... careful consideration of the active ingredients, dosage form, label information, and any additional features that may be important ...

For example, antacids such as Tums can make many prescription drugs less effective ... or if you end up using it for longer than the label advises, make an appointment with your doctor.

Over the counter (OTC) drugs are non-prescription drugs that can be purchased following the directions on the drug label or as directed by a physician. These medications do not require consultation ...