How many times have you received a prescription with the instructions to “take as needed” or “take before meals”? Pretty vague, but many people do not stop to question further, assuming the medication will work, no matter what they swallow it with.
Acidic drinks, such as fruit juice or soda pop, may chemically destroy certain kinds of antibiotics including penicillin, ampicillin, or erythromycin. Citrus fruit juices may reduce the effect of antidepressants, antihistamines, or major tranquilizers by speeding their urinary excretion.
Milk can interfere with several medicines. The laxative Dulcolax, for example, has a coating designed to ensure that the drug will dissolve slowly within the intestine. But if the medication is taken with milk, which is alkaline, it may dissolve prematurely within the stomach, lose its cathartic action and irritate the sensitive stomach lining. Milk can also block the action of tetracycline. If a doctor fails to warn his or her patient not to take this antibiotic within an hour of any dairy product, he or she might be puzzled to hear the infection being treated has not disappeared.
Even something as simple as tea, hot or cold, may cause problems. A woman given a mineral supplement to treat iron-deficiency anemia would probably be surprised to learn that the tannin in tea can undo the benefits of her iron pills.
To play it safe you can always rely on GOOD OLD WATER!! Water will not interact with medications or reduce their effectiveness.
Courtesy of Phoenix Ostomy Newsletter