What precautions should I take when using tetracyclines?
Taking outdated tetracyclines can cause serious side effects. The medicine should not be taken if: • its color, appearance, or taste have changed • it has been stored in a warm or damp area • the expiration date on its label has passed. Any such medicine should be flushed down the toilet; if there is any question about whether the medicine is still good, the patient should check with a physician or pharmacist Antacids, calcium supplements, such as the salicylates Magan or Trilisate, magnesium-containing laxatives, or sodium bicarbonate (baking soda) should not be taken within one to two hours of taking tetracyclines. Medicines that contain iron (including multivitamin and mineral supplements) should not be taken within 2-3 hours of taking tetracyclines. Some people feel dizzy when taking these drugs. The medicine also may cause blurred vision. Because of these possible effects, anyone who takes these drugs should not drive, use machines or do anything else that might be dangerous until
